20=20x-90

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Solution for 20=20x-90 equation:


Simplifying
20 = 20x + -90

Reorder the terms:
20 = -90 + 20x

Solving
20 = -90 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
20 + -20x = -90 + 20x + -20x

Combine like terms: 20x + -20x = 0
20 + -20x = -90 + 0
20 + -20x = -90

Add '-20' to each side of the equation.
20 + -20 + -20x = -90 + -20

Combine like terms: 20 + -20 = 0
0 + -20x = -90 + -20
-20x = -90 + -20

Combine like terms: -90 + -20 = -110
-20x = -110

Divide each side by '-20'.
x = 5.5

Simplifying
x = 5.5

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