3a-8+5a+3=31-4a

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Solution for 3a-8+5a+3=31-4a equation: 



3a-8+5a+3=31-4a

We move all terms to the left:

3a-8+5a+3-(31-4a)=0

We add all the numbers together, and all the variables

3a+5a-(-4a+31)-8+3=0

We add all the numbers together, and all the variables

8a-(-4a+31)-5=0

We get rid of parentheses

8a+4a-31-5=0

We add all the numbers together, and all the variables

12a-36=0

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

12a=36

a=36/12

a=3

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