3x-(6+x)=12

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Solution for 3x-(6+x)=12 equation:


Simplifying
3x + -1(6 + x) = 12
3x + (6 * -1 + x * -1) = 12
3x + (-6 + -1x) = 12

Reorder the terms:
-6 + 3x + -1x = 12

Combine like terms: 3x + -1x = 2x
-6 + 2x = 12

Solving
-6 + 2x = 12

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 2x = 12 + 6

Combine like terms: -6 + 6 = 0
0 + 2x = 12 + 6
2x = 12 + 6

Combine like terms: 12 + 6 = 18
2x = 18

Divide each side by '2'.
x = 9

Simplifying
x = 9

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