What is 16+x=12 and - 3x=15

Question

Mathematics

Lennon Liu

9 January, 22:02

What is 16+x=12 and - 3x=15

+2

Answers (2)

Know the Answer?

Casey Bryan · Answer 1

1. x=-4

2. x=-5

Step-by-step explanation:

16+x=12

Subtract 16 from each side

16+x-16 = 12-16

x = - 4

-3x=15

Divide each side by - 3

-3x/-3 = 15/-3

x = - 5

Tyrone · Answer 2

-4 and - 5

because to get 16 to 12 you have to subtract 4 but it wants you to add so you put a negative sign infront of it.

and a negative multiply by a negative equals a positive so - 3*-5=15