12-4x=4(3x+7)

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


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

Reorder the terms:
12 + -4x = 4(7 + 3x)
12 + -4x = (7 * 4 + 3x * 4)
12 + -4x = (28 + 12x)

Solving
12 + -4x = 28 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
12 + -4x + -12x = 28 + 12x + -12x

Combine like terms: -4x + -12x = -16x
12 + -16x = 28 + 12x + -12x

Combine like terms: 12x + -12x = 0
12 + -16x = 28 + 0
12 + -16x = 28

Add '-12' to each side of the equation.
12 + -12 + -16x = 28 + -12

Combine like terms: 12 + -12 = 0
0 + -16x = 28 + -12
-16x = 28 + -12

Combine like terms: 28 + -12 = 16
-16x = 16

Divide each side by '-16'.
x = -1

Simplifying
x = -1

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