3*x+7=31

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Solution for 3*x+7=31 equation: 


Simplifying
3x + 7 = 31

Reorder the terms:
7 + 3x = 31

Solving
7 + 3x = 31

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 3x = 31 + -7

Combine like terms: 7 + -7 = 0
0 + 3x = 31 + -7
3x = 31 + -7

Combine like terms: 31 + -7 = 24
3x = 24

Divide each side by '3'.
x = 8

Simplifying
x = 8

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