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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(-2a-5)=0

We get rid of parentheses

2a+5=0

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

2a=-5

a=-5/2

a=-2+1/2

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