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

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


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

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

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

Reorder the terms:
3 + 4x = -8 + x

Solving
3 + 4x = -8 + 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.
3 + 4x + -1x = -8 + x + -1x

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

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

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

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

Combine like terms: -8 + -3 = -11
3x = -11

Divide each side by '3'.
x = -3.666666667

Simplifying
x = -3.666666667

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