140-20=4x+20-20

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


Simplifying
140 + -20 = 4x + 20 + -20

Combine like terms: 140 + -20 = 120
120 = 4x + 20 + -20

Reorder the terms:
120 = 20 + -20 + 4x

Combine like terms: 20 + -20 = 0
120 = 0 + 4x
120 = 4x

Solving
120 = 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.
120 + -4x = 4x + -4x

Combine like terms: 4x + -4x = 0
120 + -4x = 0

Add '-120' to each side of the equation.
120 + -120 + -4x = 0 + -120

Combine like terms: 120 + -120 = 0
0 + -4x = 0 + -120
-4x = 0 + -120

Combine like terms: 0 + -120 = -120
-4x = -120

Divide each side by '-4'.
x = 30

Simplifying
x = 30

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