-280=4a+(5a-1)8

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Solution for -280=4a+(5a-1)8 equation: 



-280=4a+(5a-1)8

We move all terms to the left:

-280-(4a+(5a-1)8)=0



We calculate terms in parentheses: -(4a+(5a-1)8), so:

4a+(5a-1)8

We multiply parentheses

4a+40a-8

We add all the numbers together, and all the variables

44a-8

Back to the equation:

-(44a-8)



We get rid of parentheses

-44a+8-280=0

We add all the numbers together, and all the variables

-44a-272=0

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

-44a=272

a=272/-44

a=-6+2/11

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