(3y+11)+(3y-11)+90=180

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Solution for (3y+11)+(3y-11)+90=180 equation: 


Simplifying
(3y + 11) + (3y + -11) + 90 = 180

Reorder the terms:
(11 + 3y) + (3y + -11) + 90 = 180

Remove parenthesis around (11 + 3y)
11 + 3y + (3y + -11) + 90 = 180

Reorder the terms:
11 + 3y + (-11 + 3y) + 90 = 180

Remove parenthesis around (-11 + 3y)
11 + 3y + -11 + 3y + 90 = 180

Reorder the terms:
11 + -11 + 90 + 3y + 3y = 180

Combine like terms: 11 + -11 = 0
0 + 90 + 3y + 3y = 180
90 + 3y + 3y = 180

Combine like terms: 3y + 3y = 6y
90 + 6y = 180

Solving
90 + 6y = 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 + 6y = 180 + -90

Combine like terms: 90 + -90 = 0
0 + 6y = 180 + -90
6y = 180 + -90

Combine like terms: 180 + -90 = 90
6y = 90

Divide each side by '6'.
y = 15

Simplifying
y = 15

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