-y+7=8

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Solution for -y+7=8 equation: 


Simplifying
-1y + 7 = 8

Reorder the terms:
7 + -1y = 8

Solving
7 + -1y = 8

Solving for variable 'y'.

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

Add '-7' to each side of the equation.
7 + -7 + -1y = 8 + -7

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

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

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

Simplifying
y = -1

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