8=(7a+2)3/4

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Solution for 8=(7a+2)3/4 equation: 



8=(7a+2)3/4

We move all terms to the left:

8-((7a+2)3/4)=0

We multiply all the terms by the denominator


-((7a+2)3+8*4)=0



We calculate terms in parentheses: -((7a+2)3+8*4), so:

(7a+2)3+8*4

We add all the numbers together, and all the variables

(7a+2)3+32

We multiply parentheses

21a+6+32

We add all the numbers together, and all the variables

21a+38

Back to the equation:

-(21a+38)



We get rid of parentheses

-21a-38=0

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

-21a=38

a=38/-21

a=-1+17/21

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