7X+9+2X=121

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Solution for 7X+9+2X=121 equation: 


Simplifying
7X + 9 + 2X = 121

Reorder the terms:
9 + 7X + 2X = 121

Combine like terms: 7X + 2X = 9X
9 + 9X = 121

Solving
9 + 9X = 121

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 + 9X = 121 + -9

Combine like terms: 9 + -9 = 0
0 + 9X = 121 + -9
9X = 121 + -9

Combine like terms: 121 + -9 = 112
9X = 112

Divide each side by '9'.
X = 12.44444444

Simplifying
X = 12.44444444

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