20+90+y=180

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Solution for 20+90+y=180 equation: 


Simplifying
20 + 90 + y = 180

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

Solving
110 + y = 180

Solving for variable 'y'.

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

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

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

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

Simplifying
y = 70

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