Answer:
11
Step-by-step explanation:
6x+7=8x-15
7=2x+15
22=2x
11=x
11 =x
6x +7=8x -15
Subtract 6x from each side
6x-6x +7=8x-6x -15
7 = 2x -15
Add 15 to each side
7+15 = 2x-15+15
22 =2x
Divide each side by 2
22/2 = 2x/2
