What do you need to add to -9 to get 8?

Anonymous

∙ 12y ago

Updated: 8/20/2019

You need to add 17.

x+-9=8

Add nine to each side

x+-9=8

+9 +9

-9+9=0 so nine cancels out.

8+9=17 so now you have:

x=17

Now you have the value of x.

Wiki User

∙ 12y ago

What else can I help you with?

What do you need to add to -8 to get 9?

- 8 + 17 = 9 =========

What do you need to add to -6 to get 2?

What do you need to add to -9 to get to 6?

You need to add 6 - (-9) = 6 + 9 = 15.

What do you need add to -7 to get 2?

you need to add +9 +9-7 = +2

What do you need to add to -8 to get 10?

You need to add 18 to negative 8 to get 10.

What do you need to add to -8 to get 2?

you need to add 10

What do you add to -9 to get to 8?

what do you need to add to -7 to get 9?

To find what you need to add to -7 to get 9, you can set up the equation: -7 + x = 9. Solving for x gives you x = 9 + 7, which simplifies to x = 16. Therefore, you need to add 16 to -7 to get 9.

What is the answer to 1 equals t-8?

What do you need to add to -9 to get 7?

It is: -9+16 = 7

What do you need to add to -9 to get 10?

10 - (-9) = 19

What do you need to add to -9 to get 2?

-9 + 11 = 2