-1y+8=-4+7

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Solution for -1y+8=-4+7 equation: 


Simplifying
-1y + 8 = -4 + 7

Reorder the terms:
8 + -1y = -4 + 7

Combine like terms: -4 + 7 = 3
8 + -1y = 3

Solving
8 + -1y = 3

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 = 3 + -8

Combine like terms: 8 + -8 = 0
0 + -1y = 3 + -8
-1y = 3 + -8

Combine like terms: 3 + -8 = -5
-1y = -5

Divide each side by '-1'.
y = 5

Simplifying
y = 5

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