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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

31a-(8a+90)-2=0

We get rid of parentheses

31a-8a-90-2=0

We add all the numbers together, and all the variables

23a-92=0

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

23a=92

a=92/23

a=4

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