2(a+5)=5(a-4)

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Solution for 2(a+5)=5(a-4) equation: 



2(a+5)=5(a-4)

We move all terms to the left:

2(a+5)-(5(a-4))=0

We multiply parentheses

2a-(5(a-4))+10=0



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

5(a-4)

We multiply parentheses

5a-20

Back to the equation:

-(5a-20)



We get rid of parentheses

2a-5a+20+10=0

We add all the numbers together, and all the variables

-3a+30=0

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

-3a=-30

a=-30/-3

a=+10

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