x+20+y+90=180

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Solution for x+20+y+90=180 equation:


Simplifying
x + 20 + y + 90 = 180

Reorder the terms:
20 + 90 + x + y = 180

Combine like terms: 20 + 90 = 110
110 + x + y = 180

Solving
110 + x + y = 180

Solving for variable 'x'.

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

Add '-110' to each side of the equation.
110 + x + -110 + y = 180 + -110

Reorder the terms:
110 + -110 + x + y = 180 + -110

Combine like terms: 110 + -110 = 0
0 + x + y = 180 + -110
x + y = 180 + -110

Combine like terms: 180 + -110 = 70
x + y = 70

Add '-1y' to each side of the equation.
x + y + -1y = 70 + -1y

Combine like terms: y + -1y = 0
x + 0 = 70 + -1y
x = 70 + -1y

Simplifying
x = 70 + -1y

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