(7x-4)-4(2x-6)=3x+31

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Solution for (7x-4)-4(2x-6)=3x+31 equation:


Simplifying
(7x + -4) + -4(2x + -6) = 3x + 31

Reorder the terms:
(-4 + 7x) + -4(2x + -6) = 3x + 31

Remove parenthesis around (-4 + 7x)
-4 + 7x + -4(2x + -6) = 3x + 31

Reorder the terms:
-4 + 7x + -4(-6 + 2x) = 3x + 31
-4 + 7x + (-6 * -4 + 2x * -4) = 3x + 31
-4 + 7x + (24 + -8x) = 3x + 31

Reorder the terms:
-4 + 24 + 7x + -8x = 3x + 31

Combine like terms: -4 + 24 = 20
20 + 7x + -8x = 3x + 31

Combine like terms: 7x + -8x = -1x
20 + -1x = 3x + 31

Reorder the terms:
20 + -1x = 31 + 3x

Solving
20 + -1x = 31 + 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.
20 + -1x + -3x = 31 + 3x + -3x

Combine like terms: -1x + -3x = -4x
20 + -4x = 31 + 3x + -3x

Combine like terms: 3x + -3x = 0
20 + -4x = 31 + 0
20 + -4x = 31

Add '-20' to each side of the equation.
20 + -20 + -4x = 31 + -20

Combine like terms: 20 + -20 = 0
0 + -4x = 31 + -20
-4x = 31 + -20

Combine like terms: 31 + -20 = 11
-4x = 11

Divide each side by '-4'.
x = -2.75

Simplifying
x = -2.75

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