12-x=3-4x

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Solution for 12-x=3-4x equation:


Simplifying
12 + -1x = 3 + -4x

Solving
12 + -1x = 3 + -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.
12 + -1x + 4x = 3 + -4x + 4x

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

Combine like terms: -4x + 4x = 0
12 + 3x = 3 + 0
12 + 3x = 3

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

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

Combine like terms: 3 + -12 = -9
3x = -9

Divide each side by '3'.
x = -3

Simplifying
x = -3

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