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

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


Simplifying
31 + -4x = -1(-4x + 8)

Reorder the terms:
31 + -4x = -1(8 + -4x)
31 + -4x = (8 * -1 + -4x * -1)
31 + -4x = (-8 + 4x)

Solving
31 + -4x = -8 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
31 + -4x + -4x = -8 + 4x + -4x

Combine like terms: -4x + -4x = -8x
31 + -8x = -8 + 4x + -4x

Combine like terms: 4x + -4x = 0
31 + -8x = -8 + 0
31 + -8x = -8

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

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

Combine like terms: -8 + -31 = -39
-8x = -39

Divide each side by '-8'.
x = 4.875

Simplifying
x = 4.875

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