7y-15+2y=75

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Solution for 7y-15+2y=75 equation:


Simplifying
7y + -15 + 2y = 75

Reorder the terms:
-15 + 7y + 2y = 75

Combine like terms: 7y + 2y = 9y
-15 + 9y = 75

Solving
-15 + 9y = 75

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 = 75 + 15

Combine like terms: -15 + 15 = 0
0 + 9y = 75 + 15
9y = 75 + 15

Combine like terms: 75 + 15 = 90
9y = 90

Divide each side by '9'.
y = 10

Simplifying
y = 10

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