5x2x+21=9

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Solution for 5x2x+21=9 equation: 



5x^2x+21=9

We move all terms to the left:

5x^2x+21-(9)=0

We add all the numbers together, and all the variables

5x^2x+12=0

We move all terms containing x to the left, all other terms to the right

5x^2x=-12

x=-12/1

x=-12

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