2*-1-y=-9

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Solution for 2*-1-y=-9 equation: 


Simplifying
2 * -1 + -1y = -9

Multiply 2 * -1
-2 + -1y = -9

Solving
-2 + -1y = -9

Solving for variable 'y'.

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

Add '2' to each side of the equation.
-2 + 2 + -1y = -9 + 2

Combine like terms: -2 + 2 = 0
0 + -1y = -9 + 2
-1y = -9 + 2

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

Divide each side by '-1'.
y = 7

Simplifying
y = 7

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