280=-5(8a+8)

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



280=-5(8a+8)

We move all terms to the left:

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



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

-5(8a+8)

We multiply parentheses

-40a-40

Back to the equation:

-(-40a-40)



We get rid of parentheses

40a+40+280=0

We add all the numbers together, and all the variables

40a+320=0

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

40a=-320

a=-320/40

a=-8

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