2x+7x=15

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Solution for 2x+7x=15 equation: 


Simplifying
2x + 7x = 15

Combine like terms: 2x + 7x = 9x
9x = 15

Solving
9x = 15

Solving for variable 'x'.

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

Divide each side by '9'.
x = 1.666666667

Simplifying
x = 1.666666667

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