31=x+2x

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Solution for 31=x+2x equation:


Simplifying
31 = x + 2x

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

Solving
31 = 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 = 3x + -3x

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

Add '-31' to each side of the equation.
31 + -31 + -3x = 0 + -31

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

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

Divide each side by '-3'.
x = 10.33333333

Simplifying
x = 10.33333333

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