7y+15+5y-15=90

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Solution for 7y+15+5y-15=90 equation: 


Simplifying
7y + 15 + 5y + -15 = 90

Reorder the terms:
15 + -15 + 7y + 5y = 90

Combine like terms: 15 + -15 = 0
0 + 7y + 5y = 90
7y + 5y = 90

Combine like terms: 7y + 5y = 12y
12y = 90

Solving
12y = 90

Solving for variable 'y'.

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

Divide each side by '12'.
y = 7.5

Simplifying
y = 7.5

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