-4x+7x=31

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Solution for -4x+7x=31 equation: 


Simplifying
-4x + 7x = 31

Combine like terms: -4x + 7x = 3x
3x = 31

Solving
3x = 31

Solving for variable 'x'.

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

Divide each side by '3'.
x = 10.33333333

Simplifying
x = 10.33333333

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