D. X=8 distribute the 5 to the 8 and 7 which is 40 + 35 = 5 times x + 5 times 7
Multiply 5 times x and 5 and 7. Add left side to equal 75. Subtract 35 from both sides. Divide by 5 on both sides. Get x = 8
5(8+7) =5x+35
40+ 35 = 5x + 35
75= 5x +35
40= 5x
X=8
