(X-1)=9-(y+2)

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Solution for (X-1)=9-(y+2) equation:


Simplifying
(X + -1) = 9 + -1(y + 2)

Reorder the terms:
(-1 + X) = 9 + -1(y + 2)

Remove parenthesis around (-1 + X)
-1 + X = 9 + -1(y + 2)

Reorder the terms:
-1 + X = 9 + -1(2 + y)
-1 + X = 9 + (2 * -1 + y * -1)
-1 + X = 9 + (-2 + -1y)

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

Solving
-1 + X = 7 + -1y

Solving for variable 'X'.

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

Add '1' to each side of the equation.
-1 + 1 + X = 7 + 1 + -1y

Combine like terms: -1 + 1 = 0
0 + X = 7 + 1 + -1y
X = 7 + 1 + -1y

Combine like terms: 7 + 1 = 8
X = 8 + -1y

Simplifying
X = 8 + -1y

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