x+x-9=25

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Solution for x+x-9=25 equation: 


Simplifying
x + x + -9 = 25

Reorder the terms:
-9 + x + x = 25

Combine like terms: x + x = 2x
-9 + 2x = 25

Solving
-9 + 2x = 25

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 2x = 25 + 9

Combine like terms: -9 + 9 = 0
0 + 2x = 25 + 9
2x = 25 + 9

Combine like terms: 25 + 9 = 34
2x = 34

Divide each side by '2'.
x = 17

Simplifying
x = 17

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