-1=-2(4a-5a)+37

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Solution for -1=-2(4a-5a)+37 equation: 



-1=-2(4a-5a)+37

We move all terms to the left:

-1-(-2(4a-5a)+37)=0

We add all the numbers together, and all the variables

-(-2(-1a)+37)-1=0



We calculate terms in parentheses: -(-2(-1a)+37), so:

-2(-1a)+37

We multiply parentheses

2a+37

Back to the equation:

-(2a+37)



We get rid of parentheses

-2a-37-1=0

We add all the numbers together, and all the variables

-2a-38=0

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

-2a=38

a=38/-2

a=-19

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