2x+9-2=31

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


Simplifying
2x + 9 + -2 = 31

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

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

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

Combine like terms: 7 + -7 = 0
0 + 2x = 31 + -7
2x = 31 + -7

Combine like terms: 31 + -7 = 24
2x = 24

Divide each side by '2'.
x = 12

Simplifying
x = 12

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