0.2(x+50)-6=0.4(3x+20)

Mathematics · Middle School · Wed Jan 13 2021

Answered on

Given the numerical equation:

0.2(x + 50) - 6 = 0.4(3x + 20)

Solve for x.

Solution:

In order to solve for x, we distribute 0.2 and 0.4 to their corresponding parenthesis.

0.2(x + 50) - 6 = 0.4(3x + 20)

0.2x + 10 - 6 = 1.2 x + 8

0.2x + 4 = 1.2 x + 8

Transpose 8 and 0.2 x to their opposite sides, hence we must take note that in transposing a number, the sign changes.

4 - 8 = 1.2x- 0.2x

-4 = x

Final answer:

x = -4