3-7x+3x=31

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


Simplifying
3 + -7x + 3x = 31

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

Solving
3 + -4x = 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 + -4x = 31 + -3

Combine like terms: 3 + -3 = 0
0 + -4x = 31 + -3
-4x = 31 + -3

Combine like terms: 31 + -3 = 28
-4x = 28

Divide each side by '-4'.
x = -7

Simplifying
x = -7

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