-x+31=-4x-20

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Solution for -x+31=-4x-20 equation:


Simplifying
-1x + 31 = -4x + -20

Reorder the terms:
31 + -1x = -4x + -20

Reorder the terms:
31 + -1x = -20 + -4x

Solving
31 + -1x = -20 + -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 + -1x + 4x = -20 + -4x + 4x

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

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

Add '-31' to each side of the equation.
31 + -31 + 3x = -20 + -31

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

Combine like terms: -20 + -31 = -51
3x = -51

Divide each side by '3'.
x = -17

Simplifying
x = -17

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