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

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Solution for 2a+(a+5)-2(a+4)=0 equation: 



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

We multiply parentheses

2a+(a+5)-2a-8=0

We get rid of parentheses

2a+a-2a+5-8=0

We add all the numbers together, and all the variables

a-3=0

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

a=3

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