-0.4(20)+.5x=.3(20+x)

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Solution for -0.4(20)+.5x=.3(20+x) equation:


Simplifying
-0.4(20) + 0.5x = 0.3(20 + x)

Multiply -0.4 * 20
-8 + 0.5x = 0.3(20 + x)
-8 + 0.5x = (20 * 0.3 + x * 0.3)
-8 + 0.5x = (6 + 0.3x)

Solving
-8 + 0.5x = 6 + 0.3x

Solving for variable 'x'.

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

Add '-0.3x' to each side of the equation.
-8 + 0.5x + -0.3x = 6 + 0.3x + -0.3x

Combine like terms: 0.5x + -0.3x = 0.2x
-8 + 0.2x = 6 + 0.3x + -0.3x

Combine like terms: 0.3x + -0.3x = 0.0
-8 + 0.2x = 6 + 0.0
-8 + 0.2x = 6

Add '8' to each side of the equation.
-8 + 8 + 0.2x = 6 + 8

Combine like terms: -8 + 8 = 0
0 + 0.2x = 6 + 8
0.2x = 6 + 8

Combine like terms: 6 + 8 = 14
0.2x = 14

Divide each side by '0.2'.
x = 70

Simplifying
x = 70

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