2y-15+7y=90

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Solution for 2y-15+7y=90 equation:


Simplifying
2y + -15 + 7y = 90

Reorder the terms:
-15 + 2y + 7y = 90

Combine like terms: 2y + 7y = 9y
-15 + 9y = 90

Solving
-15 + 9y = 90

Solving for variable 'y'.

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

Add '15' to each side of the equation.
-15 + 15 + 9y = 90 + 15

Combine like terms: -15 + 15 = 0
0 + 9y = 90 + 15
9y = 90 + 15

Combine like terms: 90 + 15 = 105
9y = 105

Divide each side by '9'.
y = 11.66666667

Simplifying
y = 11.66666667

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