9y+15=7y-3

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Solution for 9y+15=7y-3 equation:


Simplifying
9y + 15 = 7y + -3

Reorder the terms:
15 + 9y = 7y + -3

Reorder the terms:
15 + 9y = -3 + 7y

Solving
15 + 9y = -3 + 7y

Solving for variable 'y'.

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

Add '-7y' to each side of the equation.
15 + 9y + -7y = -3 + 7y + -7y

Combine like terms: 9y + -7y = 2y
15 + 2y = -3 + 7y + -7y

Combine like terms: 7y + -7y = 0
15 + 2y = -3 + 0
15 + 2y = -3

Add '-15' to each side of the equation.
15 + -15 + 2y = -3 + -15

Combine like terms: 15 + -15 = 0
0 + 2y = -3 + -15
2y = -3 + -15

Combine like terms: -3 + -15 = -18
2y = -18

Divide each side by '2'.
y = -9

Simplifying
y = -9

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