Y=12-(3x+9)

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Solution for Y=12-(3x+9) equation: 


Simplifying
Y = 12 + -1(3x + 9)

Reorder the terms:
Y = 12 + -1(9 + 3x)
Y = 12 + (9 * -1 + 3x * -1)
Y = 12 + (-9 + -3x)

Combine like terms: 12 + -9 = 3
Y = 3 + -3x

Solving
Y = 3 + -3x

Solving for variable 'Y'.

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

Simplifying
Y = 3 + -3x

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