3x+x+8=(x-1)

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Solution for 3x+x+8=(x-1) equation:


Simplifying
3x + x + 8 = (x + -1)

Reorder the terms:
8 + 3x + x = (x + -1)

Combine like terms: 3x + x = 4x
8 + 4x = (x + -1)

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

Remove parenthesis around (-1 + x)
8 + 4x = -1 + x

Solving
8 + 4x = -1 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
8 + 4x + -1x = -1 + x + -1x

Combine like terms: 4x + -1x = 3x
8 + 3x = -1 + x + -1x

Combine like terms: x + -1x = 0
8 + 3x = -1 + 0
8 + 3x = -1

Add '-8' to each side of the equation.
8 + -8 + 3x = -1 + -8

Combine like terms: 8 + -8 = 0
0 + 3x = -1 + -8
3x = -1 + -8

Combine like terms: -1 + -8 = -9
3x = -9

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

Simplifying
x = -3

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