3x+9-2x=12

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Solution for 3x+9-2x=12 equation:


Simplifying
3x + 9 + -2x = 12

Reorder the terms:
9 + 3x + -2x = 12

Combine like terms: 3x + -2x = 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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