31=-8x-9

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Solution for 31=-8x-9 equation:


Simplifying
31 = -8x + -9

Reorder the terms:
31 = -9 + -8x

Solving
31 = -9 + -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 + 8x = -9 + -8x + 8x

Combine like terms: -8x + 8x = 0
31 + 8x = -9 + 0
31 + 8x = -9

Add '-31' to each side of the equation.
31 + -31 + 8x = -9 + -31

Combine like terms: 31 + -31 = 0
0 + 8x = -9 + -31
8x = -9 + -31

Combine like terms: -9 + -31 = -40
8x = -40

Divide each side by '8'.
x = -5

Simplifying
x = -5

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