Question

9 - 4x + 7x = 15

A. x = -2
B. x = 8
C. x = -8

Answer 1

this is easy so

Answer 2

this is easy so

Answer 3

Combine like terms: -4x + 7x = 3x
9 + 3x = 15

Answer 4

Add '-9' to each side of the equation.
9 + -9 + 3x = 15 + -9

Answer 5

First you combine like terms so -4x+7=3x.
Then you get 9 +3x=15 then you subtract 9 from each side and then you will get 3x=6 then divide by 2. and it will b x=2

Answer 6

Combine like terms: 9 + -9 = 0
0 + 3x = 15 + -9
3x = 15 + -9

Combine like terms: 15 + -9 = 6
3x = 6

Divide each side by '3'.
x = 2

Simplifying
x = 2

Answer 7

thanks

Answer 8

np