4X-3X+9=12

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Solution for 4X-3X+9=12 equation: 


Simplifying
4X + -3X + 9 = 12

Reorder the terms:
9 + 4X + -3X = 12

Combine like terms: 4X + -3X = 1X
9 + 1X = 12

Solving
9 + 1X = 12

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 + 1X = 12 + -9

Combine like terms: 9 + -9 = 0
0 + 1X = 12 + -9
1X = 12 + -9

Combine like terms: 12 + -9 = 3
1X = 3

Divide each side by '1'.
X = 3

Simplifying
X = 3

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