X+30+x-40+x-30=180

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Solution for X+30+x-40+x-30=180 equation: 


Simplifying
X + 30 + x + -40 + x + -30 = 180

Reorder the terms:
30 + -40 + -30 + X + x + x = 180

Combine like terms: 30 + -40 = -10
-10 + -30 + X + x + x = 180

Combine like terms: -10 + -30 = -40
-40 + X + x + x = 180

Combine like terms: x + x = 2x
-40 + X + 2x = 180

Solving
-40 + X + 2x = 180

Solving for variable 'X'.

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

Add '40' to each side of the equation.
-40 + X + 40 + 2x = 180 + 40

Reorder the terms:
-40 + 40 + X + 2x = 180 + 40

Combine like terms: -40 + 40 = 0
0 + X + 2x = 180 + 40
X + 2x = 180 + 40

Combine like terms: 180 + 40 = 220
X + 2x = 220

Add '-2x' to each side of the equation.
X + 2x + -2x = 220 + -2x

Combine like terms: 2x + -2x = 0
X + 0 = 220 + -2x
X = 220 + -2x

Simplifying
X = 220 + -2x

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