x-(12-x)=39

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Solution for x-(12-x)=39 equation:


Simplifying
x + -1(12 + -1x) = 39
x + (12 * -1 + -1x * -1) = 39
x + (-12 + 1x) = 39

Reorder the terms:
-12 + x + 1x = 39

Combine like terms: x + 1x = 2x
-12 + 2x = 39

Solving
-12 + 2x = 39

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 2x = 39 + 12

Combine like terms: -12 + 12 = 0
0 + 2x = 39 + 12
2x = 39 + 12

Combine like terms: 39 + 12 = 51
2x = 51

Divide each side by '2'.
x = 25.5

Simplifying
x = 25.5

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