37=-3(1+3a)-4(a+3)

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Solution for 37=-3(1+3a)-4(a+3) equation: 



37=-3(1+3a)-4(a+3)

We move all terms to the left:

37-(-3(1+3a)-4(a+3))=0

We add all the numbers together, and all the variables

-(-3(3a+1)-4(a+3))+37=0



We calculate terms in parentheses: -(-3(3a+1)-4(a+3)), so:

-3(3a+1)-4(a+3)

We multiply parentheses

-9a-4a-3-12

We add all the numbers together, and all the variables

-13a-15

Back to the equation:

-(-13a-15)



We get rid of parentheses

13a+15+37=0

We add all the numbers together, and all the variables

13a+52=0

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

13a=-52

a=-52/13

a=-4

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