Question

The sum of five times a number and four is equal to the difference of the number and eight. Find the number. Round your answer to the nearest integer, if necessary.

Answer 1

x = the number

the sum 5x+4

is equal to the difference x-8

5x+4=x-8

5x-x=-8-4

4x=-12

x=-12/4=-3

the number sought is -3

verification :

5x+4 =5*-3+4 = -15+4=-11

x-8= -3-8=-11