6-(y-1)=9

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Solution for 6-(y-1)=9 equation:


Simplifying
6 + -1(y + -1) = 9

Reorder the terms:
6 + -1(-1 + y) = 9
6 + (-1 * -1 + y * -1) = 9
6 + (1 + -1y) = 9

Combine like terms: 6 + 1 = 7
7 + -1y = 9

Solving
7 + -1y = 9

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 = 9 + -7

Combine like terms: 7 + -7 = 0
0 + -1y = 9 + -7
-1y = 9 + -7

Combine like terms: 9 + -7 = 2
-1y = 2

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

Simplifying
y = -2

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