28=3x-(12-x)

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Solution for 28=3x-(12-x) equation:


Simplifying
28 = 3x + -1(12 + -1x)
28 = 3x + (12 * -1 + -1x * -1)
28 = 3x + (-12 + 1x)

Reorder the terms:
28 = -12 + 3x + 1x

Combine like terms: 3x + 1x = 4x
28 = -12 + 4x

Solving
28 = -12 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
28 + -4x = -12 + 4x + -4x

Combine like terms: 4x + -4x = 0
28 + -4x = -12 + 0
28 + -4x = -12

Add '-28' to each side of the equation.
28 + -28 + -4x = -12 + -28

Combine like terms: 28 + -28 = 0
0 + -4x = -12 + -28
-4x = -12 + -28

Combine like terms: -12 + -28 = -40
-4x = -40

Divide each side by '-4'.
x = 10

Simplifying
x = 10

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