7x-2x+9x=21

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Solution for 7x-2x+9x=21 equation: 


Simplifying
7x + -2x + 9x = 21

Combine like terms: 7x + -2x = 5x
5x + 9x = 21

Combine like terms: 5x + 9x = 14x
14x = 21

Solving
14x = 21

Solving for variable 'x'.

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

Divide each side by '14'.
x = 1.5

Simplifying
x = 1.5

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