20=3x-8x

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Solution for 20=3x-8x equation:


Simplifying
20 = 3x + -8x

Combine like terms: 3x + -8x = -5x
20 = -5x

Solving
20 = -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
20 + 5x = -5x + 5x

Combine like terms: -5x + 5x = 0
20 + 5x = 0

Add '-20' to each side of the equation.
20 + -20 + 5x = 0 + -20

Combine like terms: 20 + -20 = 0
0 + 5x = 0 + -20
5x = 0 + -20

Combine like terms: 0 + -20 = -20
5x = -20

Divide each side by '5'.
x = -4

Simplifying
x = -4

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