9X-3Y-8=X+12-3Y

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Solution for 9X-3Y-8=X+12-3Y equation: 


Simplifying
9X + -3Y + -8 = X + 12 + -3Y

Reorder the terms:
-8 + 9X + -3Y = X + 12 + -3Y

Reorder the terms:
-8 + 9X + -3Y = 12 + X + -3Y

Add '3Y' to each side of the equation.
-8 + 9X + -3Y + 3Y = 12 + X + -3Y + 3Y

Combine like terms: -3Y + 3Y = 0
-8 + 9X + 0 = 12 + X + -3Y + 3Y
-8 + 9X = 12 + X + -3Y + 3Y

Combine like terms: -3Y + 3Y = 0
-8 + 9X = 12 + X + 0
-8 + 9X = 12 + X

Solving
-8 + 9X = 12 + X

Solving for variable 'X'.

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

Add '-1X' to each side of the equation.
-8 + 9X + -1X = 12 + X + -1X

Combine like terms: 9X + -1X = 8X
-8 + 8X = 12 + X + -1X

Combine like terms: X + -1X = 0
-8 + 8X = 12 + 0
-8 + 8X = 12

Add '8' to each side of the equation.
-8 + 8 + 8X = 12 + 8

Combine like terms: -8 + 8 = 0
0 + 8X = 12 + 8
8X = 12 + 8

Combine like terms: 12 + 8 = 20
8X = 20

Divide each side by '8'.
X = 2.5

Simplifying
X = 2.5

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