12+1x=-3(4-x)

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Solution for 12+1x=-3(4-x) equation: 


Simplifying
12 + 1x = -3(4 + -1x)
12 + 1x = (4 * -3 + -1x * -3)
12 + 1x = (-12 + 3x)

Solving
12 + 1x = -12 + 3x

Solving for variable 'x'.

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

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

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

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

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

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

Combine like terms: -12 + -12 = -24
-2x = -24

Divide each side by '-2'.
x = 12

Simplifying
x = 12

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