(X+-7)-12-(9y)=

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Solution for (X+-7)-12-(9y)= equation:


Simplifying
(X + -7) + -12 + -1(9y) = 0

Reorder the terms:
(-7 + X) + -12 + -1(9y) = 0

Remove parenthesis around (-7 + X)
-7 + X + -12 + -1(9y) = 0

Remove parenthesis around (9y)
-7 + X + -12 + -1 * 9y = 0

Multiply -1 * 9
-7 + X + -12 + -9y = 0

Reorder the terms:
-7 + -12 + X + -9y = 0

Combine like terms: -7 + -12 = -19
-19 + X + -9y = 0

Solving
-19 + X + -9y = 0

Solving for variable 'X'.

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

Add '19' to each side of the equation.
-19 + X + 19 + -9y = 0 + 19

Reorder the terms:
-19 + 19 + X + -9y = 0 + 19

Combine like terms: -19 + 19 = 0
0 + X + -9y = 0 + 19
X + -9y = 0 + 19

Combine like terms: 0 + 19 = 19
X + -9y = 19

Add '9y' to each side of the equation.
X + -9y + 9y = 19 + 9y

Combine like terms: -9y + 9y = 0
X + 0 = 19 + 9y
X = 19 + 9y

Simplifying
X = 19 + 9y

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