3x-31=8

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Solution for 3x-31=8 equation: 


Simplifying
3x + -31 = 8

Reorder the terms:
-31 + 3x = 8

Solving
-31 + 3x = 8

Solving for variable 'x'.

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

Add '31' to each side of the equation.
-31 + 31 + 3x = 8 + 31

Combine like terms: -31 + 31 = 0
0 + 3x = 8 + 31
3x = 8 + 31

Combine like terms: 8 + 31 = 39
3x = 39

Divide each side by '3'.
x = 13

Simplifying
x = 13

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