12=3x-7x-4

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Solution for 12=3x-7x-4 equation:


Simplifying
12 = 3x + -7x + -4

Reorder the terms:
12 = -4 + 3x + -7x

Combine like terms: 3x + -7x = -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 = -16
4x = -16

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

Simplifying
x = -4

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