2x-3+9=x+12

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


Simplifying
2x + -3 + 9 = x + 12

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

Combine like terms: -3 + 9 = 6
6 + 2x = x + 12

Reorder the terms:
6 + 2x = 12 + x

Solving
6 + 2x = 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.
6 + 2x + -1x = 12 + x + -1x

Combine like terms: 2x + -1x = 1x
6 + 1x = 12 + x + -1x

Combine like terms: x + -1x = 0
6 + 1x = 12 + 0
6 + 1x = 12

Add '-6' to each side of the equation.
6 + -6 + 1x = 12 + -6

Combine like terms: 6 + -6 = 0
0 + 1x = 12 + -6
1x = 12 + -6

Combine like terms: 12 + -6 = 6
1x = 6

Divide each side by '1'.
x = 6

Simplifying
x = 6

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