Question

9x + 4= 7x - 8x + 16

Answer 1

@iGreen

Answer 2

combine like terms
ex 7x-8x =??
then subtract 4 from both sides getting the numbers on one side

do that then we can proceed

Answer 3

7x = 20

Answer 4

no
7x-8x =?? this equals -x
subtracting 4 gives

9x = -x + 12

Answer 5

now add x to both sides

Answer 6

8x = 12

Answer 7

no
we are adding x to eliminate the x on the right hand side
9x = -x + 12
9x+x=(-x+x) + 12
10x= 12

now to get x by itself we divide both sides by 10

10x/10=12/10 the 10s cancel

Answer 8

if you notice --if we do something to one side of the equation we must do it to the other