7+5=10y-15-9y

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Solution for 7+5=10y-15-9y equation:


Simplifying
7 + 5 = 10y + -15 + -9y

Combine like terms: 7 + 5 = 12
12 = 10y + -15 + -9y

Reorder the terms:
12 = -15 + 10y + -9y

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

Solving
12 = -15 + 1y

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.
12 + -1y = -15 + 1y + -1y

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

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

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

Combine like terms: -15 + -12 = -27
-1y = -27

Divide each side by '-1'.
y = 27

Simplifying
y = 27

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