-9=r3-4

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Solution for -9=r3-4 equation: 



-9=r3-4

We move all terms to the left:

-9-(r3-4)=0

We add all the numbers together, and all the variables

-(+r^3-4)-9=0

We get rid of parentheses

-r^3+4-9=0

We do not support erpression: r^3

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