8=7-r3

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Solution for 8=7-r3 equation: 



8=7-r3

We move all terms to the left:

8-(7-r3)=0

We add all the numbers together, and all the variables

-(-1r^3+7)+8=0

We get rid of parentheses

1r^3-7+8=0

We do not support erpression: r^3

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