3x-1=31-x

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Solution for 3x-1=31-x equation:


Simplifying
3x + -1 = 31 + -1x

Reorder the terms:
-1 + 3x = 31 + -1x

Solving
-1 + 3x = 31 + -1x

Solving for variable 'x'.

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

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

Combine like terms: 3x + x = 4x
-1 + 4x = 31 + -1x + x

Combine like terms: -1x + x = 0
-1 + 4x = 31 + 0
-1 + 4x = 31

Add '1' to each side of the equation.
-1 + 1 + 4x = 31 + 1

Combine like terms: -1 + 1 = 0
0 + 4x = 31 + 1
4x = 31 + 1

Combine like terms: 31 + 1 = 32
4x = 32

Divide each side by '4'.
x = 8

Simplifying
x = 8

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