Y+(y-30)+9=180

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Solution for Y+(y-30)+9=180 equation: 


Simplifying
Y + (y + -30) + 9 = 180

Reorder the terms:
Y + (-30 + y) + 9 = 180

Remove parenthesis around (-30 + y)
Y + -30 + y + 9 = 180

Reorder the terms:
-30 + 9 + Y + y = 180

Combine like terms: -30 + 9 = -21
-21 + Y + y = 180

Solving
-21 + Y + y = 180

Solving for variable 'Y'.

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

Add '21' to each side of the equation.
-21 + Y + 21 + y = 180 + 21

Reorder the terms:
-21 + 21 + Y + y = 180 + 21

Combine like terms: -21 + 21 = 0
0 + Y + y = 180 + 21
Y + y = 180 + 21

Combine like terms: 180 + 21 = 201
Y + y = 201

Add '-1y' to each side of the equation.
Y + y + -1y = 201 + -1y

Combine like terms: y + -1y = 0
Y + 0 = 201 + -1y
Y = 201 + -1y

Simplifying
Y = 201 + -1y

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