12+x=-4-3x

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


Simplifying
12 + x = -4 + -3x

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

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

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

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

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

Combine like terms: -4 + -12 = -16
4x = -16

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

Simplifying
x = -4

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