(X+20)+3x=120

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Solution for (X+20)+3x=120 equation: 


Simplifying
(X + 20) + 3x = 120

Reorder the terms:
(20 + X) + 3x = 120

Remove parenthesis around (20 + X)
20 + X + 3x = 120

Solving
20 + X + 3x = 120

Solving for variable 'X'.

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

Add '-20' to each side of the equation.
20 + X + -20 + 3x = 120 + -20

Reorder the terms:
20 + -20 + X + 3x = 120 + -20

Combine like terms: 20 + -20 = 0
0 + X + 3x = 120 + -20
X + 3x = 120 + -20

Combine like terms: 120 + -20 = 100
X + 3x = 100

Add '-3x' to each side of the equation.
X + 3x + -3x = 100 + -3x

Combine like terms: 3x + -3x = 0
X + 0 = 100 + -3x
X = 100 + -3x

Simplifying
X = 100 + -3x

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