X+2y-20=180

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


Simplifying
X + 2y + -20 = 180

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

Solving
-20 + X + 2y = 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 + X + 20 + 2y = 180 + 20

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

Combine like terms: -20 + 20 = 0
0 + X + 2y = 180 + 20
X + 2y = 180 + 20

Combine like terms: 180 + 20 = 200
X + 2y = 200

Add '-2y' to each side of the equation.
X + 2y + -2y = 200 + -2y

Combine like terms: 2y + -2y = 0
X + 0 = 200 + -2y
X = 200 + -2y

Simplifying
X = 200 + -2y

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