-31-2x=9-7x

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Solution for -31-2x=9-7x equation:


Simplifying
-31 + -2x = 9 + -7x

Solving
-31 + -2x = 9 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
-31 + -2x + 7x = 9 + -7x + 7x

Combine like terms: -2x + 7x = 5x
-31 + 5x = 9 + -7x + 7x

Combine like terms: -7x + 7x = 0
-31 + 5x = 9 + 0
-31 + 5x = 9

Add '31' to each side of the equation.
-31 + 31 + 5x = 9 + 31

Combine like terms: -31 + 31 = 0
0 + 5x = 9 + 31
5x = 9 + 31

Combine like terms: 9 + 31 = 40
5x = 40

Divide each side by '5'.
x = 8

Simplifying
x = 8

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