140-4x=4x+20

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Solution for 140-4x=4x+20 equation:


Simplifying
140 + -4x = 4x + 20

Reorder the terms:
140 + -4x = 20 + 4x

Solving
140 + -4x = 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.
140 + -4x + -4x = 20 + 4x + -4x

Combine like terms: -4x + -4x = -8x
140 + -8x = 20 + 4x + -4x

Combine like terms: 4x + -4x = 0
140 + -8x = 20 + 0
140 + -8x = 20

Add '-140' to each side of the equation.
140 + -140 + -8x = 20 + -140

Combine like terms: 140 + -140 = 0
0 + -8x = 20 + -140
-8x = 20 + -140

Combine like terms: 20 + -140 = -120
-8x = -120

Divide each side by '-8'.
x = 15

Simplifying
x = 15

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