Question

I need the answr for 3+x=10 please explain as well​

Answer 1

x = 7

Explanation:

3 + x = 10

-3 -3

x = 7

you subtract by 3 on both sides (because the opposite property of addition is subtraction) to cancel it out and isolate the x.

Answer 2

7

Explanation:

basically just subtract 10-3=7 then to check 3+7=10