45+45+y=180

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Solution for 45+45+y=180 equation: 


Simplifying
45 + 45 + y = 180

Combine like terms: 45 + 45 = 90
90 + y = 180

Solving
90 + y = 180

Solving for variable 'y'.

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

Add '-90' to each side of the equation.
90 + -90 + y = 180 + -90

Combine like terms: 90 + -90 = 0
0 + y = 180 + -90
y = 180 + -90

Combine like terms: 180 + -90 = 90
y = 90

Simplifying
y = 90

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