8-2x+7-4x=3(x-4)

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Solution for 8-2x+7-4x=3(x-4) equation:


Simplifying
8 + -2x + 7 + -4x = 3(x + -4)

Reorder the terms:
8 + 7 + -2x + -4x = 3(x + -4)

Combine like terms: 8 + 7 = 15
15 + -2x + -4x = 3(x + -4)

Combine like terms: -2x + -4x = -6x
15 + -6x = 3(x + -4)

Reorder the terms:
15 + -6x = 3(-4 + x)
15 + -6x = (-4 * 3 + x * 3)
15 + -6x = (-12 + 3x)

Solving
15 + -6x = -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.
15 + -6x + -3x = -12 + 3x + -3x

Combine like terms: -6x + -3x = -9x
15 + -9x = -12 + 3x + -3x

Combine like terms: 3x + -3x = 0
15 + -9x = -12 + 0
15 + -9x = -12

Add '-15' to each side of the equation.
15 + -15 + -9x = -12 + -15

Combine like terms: 15 + -15 = 0
0 + -9x = -12 + -15
-9x = -12 + -15

Combine like terms: -12 + -15 = -27
-9x = -27

Divide each side by '-9'.
x = 3

Simplifying
x = 3

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