(3y+15)+(3y+15)+90=180

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Solution for (3y+15)+(3y+15)+90=180 equation:


Simplifying
(3y + 15) + (3y + 15) + 90 = 180

Reorder the terms:
(15 + 3y) + (3y + 15) + 90 = 180

Remove parenthesis around (15 + 3y)
15 + 3y + (3y + 15) + 90 = 180

Reorder the terms:
15 + 3y + (15 + 3y) + 90 = 180

Remove parenthesis around (15 + 3y)
15 + 3y + 15 + 3y + 90 = 180

Reorder the terms:
15 + 15 + 90 + 3y + 3y = 180

Combine like terms: 15 + 15 = 30
30 + 90 + 3y + 3y = 180

Combine like terms: 30 + 90 = 120
120 + 3y + 3y = 180

Combine like terms: 3y + 3y = 6y
120 + 6y = 180

Solving
120 + 6y = 180

Solving for variable 'y'.

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

Add '-120' to each side of the equation.
120 + -120 + 6y = 180 + -120

Combine like terms: 120 + -120 = 0
0 + 6y = 180 + -120
6y = 180 + -120

Combine like terms: 180 + -120 = 60
6y = 60

Divide each side by '6'.
y = 10

Simplifying
y = 10

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