y-(-3)=-9

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Solution for y-(-3)=-9 equation: 


Simplifying
y + -1(-3) = -9

Multiply -1 * -3
y + 3 = -9

Reorder the terms:
3 + y = -9

Solving
3 + y = -9

Solving for variable 'y'.

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

Add '-3' to each side of the equation.
3 + -3 + y = -9 + -3

Combine like terms: 3 + -3 = 0
0 + y = -9 + -3
y = -9 + -3

Combine like terms: -9 + -3 = -12
y = -12

Simplifying
y = -12

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