5+2+x=9

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Solution for 5+2+x=9 equation: 


Simplifying
5 + 2 + x = 9

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

Solving
7 + x = 9

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 + x = 9 + -7

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

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

Simplifying
x = 2

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