-3-3x=12-x

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Solution for -3-3x=12-x equation:


Simplifying
-3 + -3x = 12 + -1x

Solving
-3 + -3x = 12 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-3 + -3x + x = 12 + -1x + x

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

Combine like terms: -1x + x = 0
-3 + -2x = 12 + 0
-3 + -2x = 12

Add '3' to each side of the equation.
-3 + 3 + -2x = 12 + 3

Combine like terms: -3 + 3 = 0
0 + -2x = 12 + 3
-2x = 12 + 3

Combine like terms: 12 + 3 = 15
-2x = 15

Divide each side by '-2'.
x = -7.5

Simplifying
x = -7.5

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