-y+12=7+9y

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Solution for -y+12=7+9y equation:


Simplifying
-1y + 12 = 7 + 9y

Reorder the terms:
12 + -1y = 7 + 9y

Solving
12 + -1y = 7 + 9y

Solving for variable 'y'.

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

Add '-9y' to each side of the equation.
12 + -1y + -9y = 7 + 9y + -9y

Combine like terms: -1y + -9y = -10y
12 + -10y = 7 + 9y + -9y

Combine like terms: 9y + -9y = 0
12 + -10y = 7 + 0
12 + -10y = 7

Add '-12' to each side of the equation.
12 + -12 + -10y = 7 + -12

Combine like terms: 12 + -12 = 0
0 + -10y = 7 + -12
-10y = 7 + -12

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

Divide each side by '-10'.
y = 0.5

Simplifying
y = 0.5

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