Andy C. answered 03/26/18
Tutor
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Math/Physics Tutor
7 X = 30 + 2(x + 5)
7x = 30 + 2x + 10
7x = 40 + 2x
7x - 2x = 40 + 2x -2x
5x = 40
x=8
CHECK:
Left side = 7* 8 = 56 = 30 + 26 = 30 + 2 * 13 = 30 + 2 * (8 + 5) = right side