-20+x+3x=180

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Solution for -20+x+3x=180 equation: 


Simplifying
-20 + x + 3x = 180

Combine like terms: x + 3x = 4x
-20 + 4x = 180

Solving
-20 + 4x = 180

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 + 20 + 4x = 180 + 20

Combine like terms: -20 + 20 = 0
0 + 4x = 180 + 20
4x = 180 + 20

Combine like terms: 180 + 20 = 200
4x = 200

Divide each side by '4'.
x = 50

Simplifying
x = 50

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