Question

Six times the sum of a number and twelve is forty.

Answer 1

X-the number

6(x + 12) = 40    |use distributive property: a(b + c) = ab + ac

6x + 72 = 40    |subtract 72 from both sides

6x = -32    |divide both sides by 6

x = -32/6

x = -16/3

x = -5 1/3