3+2x+7x=31

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Solution for 3+2x+7x=31 equation: 


Simplifying
3 + 2x + 7x = 31

Combine like terms: 2x + 7x = 9x
3 + 9x = 31

Solving
3 + 9x = 31

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 9x = 31 + -3

Combine like terms: 3 + -3 = 0
0 + 9x = 31 + -3
9x = 31 + -3

Combine like terms: 31 + -3 = 28
9x = 28

Divide each side by '9'.
x = 3.111111111

Simplifying
x = 3.111111111

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