-7-(-8)=-1+y

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Solution for -7-(-8)=-1+y equation: 


Simplifying
-7 + -1(-8) = -1 + y

Multiply -1 * -8
-7 + 8 = -1 + y

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

Solving
1 = -1 + y

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.
1 + -1y = -1 + y + -1y

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

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

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

Combine like terms: -1 + -1 = -2
-1y = -2

Divide each side by '-1'.
y = 2

Simplifying
y = 2

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