what is x = 0.8x + 72

Mathematics · High School · Tue Nov 03 2020

Answered on

Given the expression:

x = 0.8x + 72

Solve for the value of x.

Solution:

In order to solve for the value of x, transpose 72 on the other side of the equation. Note that when transposing a number, the sign will change. After transposing, divide both sides by 0.8 to get the value of x.

 = 0.8x + 72

0.8x = -72

x= -90