7x+4=3x-12

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


Simplifying
7x + 4 = 3x + -12

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

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

Solving
4 + 7x = -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.
4 + 7x + -3x = -12 + 3x + -3x

Combine like terms: 7x + -3x = 4x
4 + 4x = -12 + 3x + -3x

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

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

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

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

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

Simplifying
x = -4

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