X+2X+X+20=180

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Solution for X+2X+X+20=180 equation:


Simplifying
X + 2X + X + 20 = 180

Reorder the terms:
20 + X + 2X + X = 180

Combine like terms: X + 2X = 3X
20 + 3X + X = 180

Combine like terms: 3X + X = 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 = 160
4X = 160

Divide each side by '4'.
X = 40

Simplifying
X = 40

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