2(a+1)=-2(5a+1)

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Solution for 2(a+1)=-2(5a+1) equation: 



2(a+1)=-2(5a+1)

We move all terms to the left:

2(a+1)-(-2(5a+1))=0

We multiply parentheses

2a-(-2(5a+1))+2=0



We calculate terms in parentheses: -(-2(5a+1)), so:

-2(5a+1)

We multiply parentheses

-10a-2

Back to the equation:

-(-10a-2)



We get rid of parentheses

2a+10a+2+2=0

We add all the numbers together, and all the variables

12a+4=0

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

12a=-4

a=-4/12

a=-1/3

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