5x-90=4x-20

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Solution for 5x-90=4x-20 equation:


Simplifying
5x + -90 = 4x + -20

Reorder the terms:
-90 + 5x = 4x + -20

Reorder the terms:
-90 + 5x = -20 + 4x

Solving
-90 + 5x = -20 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-90 + 5x + -4x = -20 + 4x + -4x

Combine like terms: 5x + -4x = 1x
-90 + 1x = -20 + 4x + -4x

Combine like terms: 4x + -4x = 0
-90 + 1x = -20 + 0
-90 + 1x = -20

Add '90' to each side of the equation.
-90 + 90 + 1x = -20 + 90

Combine like terms: -90 + 90 = 0
0 + 1x = -20 + 90
1x = -20 + 90

Combine like terms: -20 + 90 = 70
1x = 70

Divide each side by '1'.
x = 70

Simplifying
x = 70

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