-9(-1)=y

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


Simplifying
-9(-1) = y

Multiply -9 * -1
9 = y

Solving
9 = 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.
9 + -1y = y + -1y

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

Add '-9' to each side of the equation.
9 + -9 + -1y = 0 + -9

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

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

Divide each side by '-1'.
y = 9

Simplifying
y = 9

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