9+x+x=126

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Solution for 9+x+x=126 equation: 


Simplifying
9 + x + x = 126

Combine like terms: x + x = 2x
9 + 2x = 126

Solving
9 + 2x = 126

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 = 126 + -9

Combine like terms: 9 + -9 = 0
0 + 2x = 126 + -9
2x = 126 + -9

Combine like terms: 126 + -9 = 117
2x = 117

Divide each side by '2'.
x = 58.5

Simplifying
x = 58.5

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