X+2x+y=20

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Solution for X+2x+y=20 equation: 


Simplifying
X + 2x + y = 20

Solving
X + 2x + y = 20

Solving for variable 'X'.

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

Add '-2x' to each side of the equation.
X + 2x + -2x + y = 20 + -2x

Combine like terms: 2x + -2x = 0
X + 0 + y = 20 + -2x
X + y = 20 + -2x

Add '-1y' to each side of the equation.
X + y + -1y = 20 + -2x + -1y

Combine like terms: y + -1y = 0
X + 0 = 20 + -2x + -1y
X = 20 + -2x + -1y

Simplifying
X = 20 + -2x + -1y

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