2x+20=4x-90

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Solution for 2x+20=4x-90 equation:


Simplifying
2x + 20 = 4x + -90

Reorder the terms:
20 + 2x = 4x + -90

Reorder the terms:
20 + 2x = -90 + 4x

Solving
20 + 2x = -90 + 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.
20 + 2x + -4x = -90 + 4x + -4x

Combine like terms: 2x + -4x = -2x
20 + -2x = -90 + 4x + -4x

Combine like terms: 4x + -4x = 0
20 + -2x = -90 + 0
20 + -2x = -90

Add '-20' to each side of the equation.
20 + -20 + -2x = -90 + -20

Combine like terms: 20 + -20 = 0
0 + -2x = -90 + -20
-2x = -90 + -20

Combine like terms: -90 + -20 = -110
-2x = -110

Divide each side by '-2'.
x = 55

Simplifying
x = 55

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