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

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


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

Reorder the terms:
-12 = -1x + -1(4 + 3x)
-12 = -1x + (4 * -1 + 3x * -1)
-12 = -1x + (-4 + -3x)

Reorder the terms:
-12 = -4 + -1x + -3x

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

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

Combine like terms: -4x + 4x = 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 = 8
4x = 8

Divide each side by '4'.
x = 2

Simplifying
x = 2

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