# What happens when you have a negative variable?

Add a negative sign to the answer. **A negative variable times a positive variable will produce a negative product**. For example, -x * y = -xy. Add an exponent of 2 if the variable is the same.

## What to do if you have a negative variable?

Quote: *Find out what's connected to it and undo those other numbers using the inverse. Operations. After you solve like normal. Then you will end up having a negative variable on one side of the equation.*

## Can a variable ever be negative?

**Many values are not possible**, such as negative values (e.g., the Joneses cannot have −2 children) or decimal values (e.g., the Smiths cannot have 2.2 children). In contrast, a continuous variable is defined as a variable that can take on any value within a certain range given a precise enough measurement instrument.

## What happens if a value is negative?

A negative t-value indicates **a reversal in the directionality of the effect**, which has no bearing on the significance of the difference between groups.

## What is a variable times a negative variable?

Add a negative sign to the answer. **A negative variable times a positive variable will produce a negative product**. For example, -x * y = -xy. Add an exponent of 2 if the variable is the same.

## How do you do negative exponents?

A positive exponent tells us how many times to multiply a base number, and **a negative exponent tells us how many times to divide a base number**. We can rewrite negative exponents like x⁻ⁿ as 1 / xⁿ. For example, 2⁻⁴ = 1 / (2⁴) = 1/16. Created by Sal Khan.

## What’s a negative times a negative?

When you multiply a negative by a negative you get **a positive**, because the two negative signs are cancelled out.

## What are the negative and positive rules?

The Rules:

Rule | Example | |
---|---|---|

+(+) | Two like signs become a positive sign | 3+(+2) = 3 + 2 = 5 |

−(−) | 6−(−3) = 6 + 3 = 9 | |

+(−) | Two unlike signs become a negative sign | 7+(−2) = 7 − 2 = 5 |

−(+) | 8−(+2) = 8 − 2 = 6 |

## What happens when you add a negative and a negative?

When you are adding a negative number to a negative number, **it becomes subtraction**, where you start from a negative point on the numbers line and move left.

## What happens if you add a positive and a negative?

When you have two negative signs, one turns over, and they add together to make a positive. If you have a positive and a negative, **there is one dash left over, and the answer is negative**.

## How do negatives work?

Quote:

Quote: *So let's talk about subtraction. Okay here's a deal with subtraction. I said if you know how to add you could subtract. Positive negative numbers. So what we're going to do with subtraction. Problems*

## What does a positive minus a negative equal?

):( Positive number minus a negative number switches the double negative to a positive; add the two numbers and it equals **a positive number**. ):( Negative number minus a positive number, adds the numbers, and keeps the negative sign.

## What are the examples of negative values?

For instance, **– 2, – 3, – 4, – 5, -2/3, -5/7, -3/4, -0.5, -0.7**. etc. are examples of negative numbers. In this case, these numbers are pronounced as negative two, negative three, negative four and so on.

## Why does 2 negatives make a positive?

; in other words, 12. The fact that the product of two negatives is a positive is therefore related to the fact that **the inverse of the inverse of a positive number is that positive number back again**.

## What does 3 negatives make?

When We Multiply:

Example | ||
---|---|---|

× | two positives make a positive: | 3 × 2 = 6 |

× | two negatives make a positive: | (−3) × (−2) = 6 |

× | a negative and a positive make a negative: | (−3) × 2 = −6 |

× | a positive and a negative make a negative: | 3 × (−2) = −6 |

## Do 3 negatives equal a positive?

Rule 3: **A negative number times a negative number, equals a positive number**. Two negatives make a positive, so a negative number times a negative number makes a positive number. If you look at it on the number line, walking backwards while facing in the negative direction, you move in the positive direction.

## Why do negatives cancel out?

The negatives cancel out

**When you multiply two negative numbers together, though, the first one flips the sign from positive to negative, and the second one flips it back**. In other words, negative numbers cancel each other out: when you multiply a negative number by a negative number, you get a positive number.

## What happens when you subtract a negative by a negative?

Rule 3: Subtracting a negative number from a negative number – a minus sign followed by a negative sign, **turns the two signs into a plus sign**. So, instead of subtracting a negative, you are adding a positive. Basically, – (-4) becomes +4, and then you add the numbers. For example, say we have the problem -2 – –4.

## What happens when you subtract two negative numbers?

Subtracting a negative number is like adding a positive; **you move to the right on the number line**. Example 4: Subtract −4−(−7) . Start at −4 , and move 7 units to the right.