Work Shown
9(x+1)-(x+2)=79
9x+9-x-2=79
8x+7=79
8x=79-7
8x=72
x=72/8
x = 9
Check:
9(9+1)-(9+2)=79
9(10) - 11 = 79
90 - 11 = 79
79 = 79
The answer is confirmed.
