2x-9+13=31

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Solution for 2x-9+13=31 equation: 


Simplifying
2x + -9 + 13 = 31

Reorder the terms:
-9 + 13 + 2x = 31

Combine like terms: -9 + 13 = 4
4 + 2x = 31

Solving
4 + 2x = 31

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 2x = 31 + -4

Combine like terms: 4 + -4 = 0
0 + 2x = 31 + -4
2x = 31 + -4

Combine like terms: 31 + -4 = 27
2x = 27

Divide each side by '2'.
x = 13.5

Simplifying
x = 13.5

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