15-y-7=

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Solution for 15-y-7= equation: 


Simplifying
15 + -1y + -7 = 0

Reorder the terms:
15 + -7 + -1y = 0

Combine like terms: 15 + -7 = 8
8 + -1y = 0

Solving
8 + -1y = 0

Solving for variable 'y'.

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

Add '-8' to each side of the equation.
8 + -8 + -1y = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -1y = 0 + -8
-1y = 0 + -8

Combine like terms: 0 + -8 = -8
-1y = -8

Divide each side by '-1'.
y = 8

Simplifying
y = 8

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