10y+15=y-12

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Solution for 10y+15=y-12 equation:


Simplifying
10y + 15 = y + -12

Reorder the terms:
15 + 10y = y + -12

Reorder the terms:
15 + 10y = -12 + y

Solving
15 + 10y = -12 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
15 + 10y + -1y = -12 + y + -1y

Combine like terms: 10y + -1y = 9y
15 + 9y = -12 + y + -1y

Combine like terms: y + -1y = 0
15 + 9y = -12 + 0
15 + 9y = -12

Add '-15' to each side of the equation.
15 + -15 + 9y = -12 + -15

Combine like terms: 15 + -15 = 0
0 + 9y = -12 + -15
9y = -12 + -15

Combine like terms: -12 + -15 = -27
9y = -27

Divide each side by '9'.
y = -3

Simplifying
y = -3

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