20+7x=10x-20-20

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Solution for 20+7x=10x-20-20 equation:


Simplifying
20 + 7x = 10x + -20 + -20

Reorder the terms:
20 + 7x = -20 + -20 + 10x

Combine like terms: -20 + -20 = -40
20 + 7x = -40 + 10x

Solving
20 + 7x = -40 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
20 + 7x + -10x = -40 + 10x + -10x

Combine like terms: 7x + -10x = -3x
20 + -3x = -40 + 10x + -10x

Combine like terms: 10x + -10x = 0
20 + -3x = -40 + 0
20 + -3x = -40

Add '-20' to each side of the equation.
20 + -20 + -3x = -40 + -20

Combine like terms: 20 + -20 = 0
0 + -3x = -40 + -20
-3x = -40 + -20

Combine like terms: -40 + -20 = -60
-3x = -60

Divide each side by '-3'.
x = 20

Simplifying
x = 20

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