-1(20)+.8x=.2(20+x)

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Solution for -1(20)+.8x=.2(20+x) equation:


Simplifying
-1(20) + 0.8x = 0.2(20 + x)

Multiply -1 * 20
-20 + 0.8x = 0.2(20 + x)
-20 + 0.8x = (20 * 0.2 + x * 0.2)
-20 + 0.8x = (4 + 0.2x)

Solving
-20 + 0.8x = 4 + 0.2x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-0.2x' to each side of the equation.
-20 + 0.8x + -0.2x = 4 + 0.2x + -0.2x

Combine like terms: 0.8x + -0.2x = 0.6x
-20 + 0.6x = 4 + 0.2x + -0.2x

Combine like terms: 0.2x + -0.2x = 0.0
-20 + 0.6x = 4 + 0.0
-20 + 0.6x = 4

Add '20' to each side of the equation.
-20 + 20 + 0.6x = 4 + 20

Combine like terms: -20 + 20 = 0
0 + 0.6x = 4 + 20
0.6x = 4 + 20

Combine like terms: 4 + 20 = 24
0.6x = 24

Divide each side by '0.6'.
x = 40

Simplifying
x = 40

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