x+3x+120=200

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Solution for x+3x+120=200 equation:


Simplifying
x + 3x + 120 = 200

Reorder the terms:
120 + x + 3x = 200

Combine like terms: x + 3x = 4x
120 + 4x = 200

Solving
120 + 4x = 200

Solving for variable 'x'.

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

Add '-120' to each side of the equation.
120 + -120 + 4x = 200 + -120

Combine like terms: 120 + -120 = 0
0 + 4x = 200 + -120
4x = 200 + -120

Combine like terms: 200 + -120 = 80
4x = 80

Divide each side by '4'.
x = 20

Simplifying
x = 20

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