7-x+7x=31

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


Simplifying
7 + -1x + 7x = 31

Combine like terms: -1x + 7x = 6x
7 + 6x = 31

Solving
7 + 6x = 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 + 6x = 31 + -7

Combine like terms: 7 + -7 = 0
0 + 6x = 31 + -7
6x = 31 + -7

Combine like terms: 31 + -7 = 24
6x = 24

Divide each side by '6'.
x = 4

Simplifying
x = 4

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