12=(25-x)-(19-2x)

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Solution for 12=(25-x)-(19-2x) equation:


Simplifying
12 = (25 + -1x) + -1(19 + -2x)

Remove parenthesis around (25 + -1x)
12 = 25 + -1x + -1(19 + -2x)
12 = 25 + -1x + (19 * -1 + -2x * -1)
12 = 25 + -1x + (-19 + 2x)

Reorder the terms:
12 = 25 + -19 + -1x + 2x

Combine like terms: 25 + -19 = 6
12 = 6 + -1x + 2x

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

Solving
12 = 6 + 1x

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

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

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

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

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

Divide each side by '-1'.
x = 6

Simplifying
x = 6

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