Question

Twice a number decreased by 72 is five times the sum of the number and three times the number

Answer 1

Explanation:

2x - 72 = 5(x + 3x)

2x - 72 = 5(4x)

2x - 72 = 20x

-72 = 20x - 2x

-72 = 18x

-72/18 = x

-4 = x