5.86=(9.15-a)2

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Solution for 5.86=(9.15-a)2 equation: 



5.86=(9.15-a)2

We move all terms to the left:

5.86-((9.15-a)2)=0

We add all the numbers together, and all the variables

-((-1a+9.15)2)+5.86=0



We calculate terms in parentheses: -((-1a+9.15)2), so:

(-1a+9.15)2

We multiply parentheses

-2a+18.3

Back to the equation:

-(-2a+18.3)



We get rid of parentheses

2a-18.3+5.86=0

We add all the numbers together, and all the variables

2a-12.44=0

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

2a=12.44

a=12.44/2

a=6+0.44/2

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