x-(-9)=y

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


Simplifying
x + -1(-9) = y

Multiply -1 * -9
x + 9 = y

Reorder the terms:
9 + x = y

Solving
9 + x = y

Solving for variable 'x'.

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

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

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

Simplifying
x = -9 + y

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