8-(1-y)=7

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


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

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

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

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

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

Solving
1y = 0

Solving for variable 'y'.

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

Divide each side by '1'.
y = 0

Simplifying
y = 0

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