31=x+x+(x-1)

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Solution for 31=x+x+(x-1) equation: 


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

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

Remove parenthesis around (-1 + x)
31 = x + x + -1 + x

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

Combine like terms: x + x = 2x
31 = -1 + 2x + x

Combine like terms: 2x + x = 3x
31 = -1 + 3x

Solving
31 = -1 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
31 + -3x = -1 + 3x + -3x

Combine like terms: 3x + -3x = 0
31 + -3x = -1 + 0
31 + -3x = -1

Add '-31' to each side of the equation.
31 + -31 + -3x = -1 + -31

Combine like terms: 31 + -31 = 0
0 + -3x = -1 + -31
-3x = -1 + -31

Combine like terms: -1 + -31 = -32
-3x = -32

Divide each side by '-3'.
x = 10.66666667

Simplifying
x = 10.66666667

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