115.5+90+y=180

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Solution for 115.5+90+y=180 equation: 


Simplifying
115.5 + 90 + y = 180

Combine like terms: 115.5 + 90 = 205.5
205.5 + y = 180

Solving
205.5 + y = 180

Solving for variable 'y'.

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

Add '-205.5' to each side of the equation.
205.5 + -205.5 + y = 180 + -205.5

Combine like terms: 205.5 + -205.5 = 0.0
0.0 + y = 180 + -205.5
y = 180 + -205.5

Combine like terms: 180 + -205.5 = -25.5
y = -25.5

Simplifying
y = -25.5

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