31a-2=2(4a+45)+4a+45

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Solution for 31a-2=2(4a+45)+4a+45 equation: 



31a-2=2(4a+45)+4a+45

We move all terms to the left:

31a-2-(2(4a+45)+4a+45)=0



We calculate terms in parentheses: -(2(4a+45)+4a+45), so:

2(4a+45)+4a+45

We add all the numbers together, and all the variables

4a+2(4a+45)+45

We multiply parentheses

4a+8a+90+45

We add all the numbers together, and all the variables

12a+135

Back to the equation:

-(12a+135)



We get rid of parentheses

31a-12a-135-2=0

We add all the numbers together, and all the variables

19a-137=0

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

19a=137

a=137/19

a=7+4/19

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