3x+31=4(2x-4)-8

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Solution for 3x+31=4(2x-4)-8 equation:


Simplifying
3x + 31 = 4(2x + -4) + -8

Reorder the terms:
31 + 3x = 4(2x + -4) + -8

Reorder the terms:
31 + 3x = 4(-4 + 2x) + -8
31 + 3x = (-4 * 4 + 2x * 4) + -8
31 + 3x = (-16 + 8x) + -8

Reorder the terms:
31 + 3x = -16 + -8 + 8x

Combine like terms: -16 + -8 = -24
31 + 3x = -24 + 8x

Solving
31 + 3x = -24 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
31 + 3x + -8x = -24 + 8x + -8x

Combine like terms: 3x + -8x = -5x
31 + -5x = -24 + 8x + -8x

Combine like terms: 8x + -8x = 0
31 + -5x = -24 + 0
31 + -5x = -24

Add '-31' to each side of the equation.
31 + -31 + -5x = -24 + -31

Combine like terms: 31 + -31 = 0
0 + -5x = -24 + -31
-5x = -24 + -31

Combine like terms: -24 + -31 = -55
-5x = -55

Divide each side by '-5'.
x = 11

Simplifying
x = 11

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