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

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


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

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

Combine like terms: 31 + -8 = 23
23 + -1x = 8x + -4

Reorder the terms:
23 + -1x = -4 + 8x

Solving
23 + -1x = -4 + 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.
23 + -1x + -8x = -4 + 8x + -8x

Combine like terms: -1x + -8x = -9x
23 + -9x = -4 + 8x + -8x

Combine like terms: 8x + -8x = 0
23 + -9x = -4 + 0
23 + -9x = -4

Add '-23' to each side of the equation.
23 + -23 + -9x = -4 + -23

Combine like terms: 23 + -23 = 0
0 + -9x = -4 + -23
-9x = -4 + -23

Combine like terms: -4 + -23 = -27
-9x = -27

Divide each side by '-9'.
x = 3

Simplifying
x = 3

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