-3(-2a-4)+25=-3(5a+9)+1

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Solution for -3(-2a-4)+25=-3(5a+9)+1 equation: 



-3(-2a-4)+25=-3(5a+9)+1

We move all terms to the left:

-3(-2a-4)+25-(-3(5a+9)+1)=0

We multiply parentheses

6a-(-3(5a+9)+1)+12+25=0



We calculate terms in parentheses: -(-3(5a+9)+1), so:

-3(5a+9)+1

We multiply parentheses

-15a-27+1

We add all the numbers together, and all the variables

-15a-26

Back to the equation:

-(-15a-26)



We add all the numbers together, and all the variables

6a-(-15a-26)+37=0

We get rid of parentheses

6a+15a+26+37=0

We add all the numbers together, and all the variables

21a+63=0

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

21a=-63

a=-63/21

a=-3

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