2a-4=31

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Solution for 2a-4=31 equation: 



2a-4=31

We move all terms to the left:

2a-4-(31)=0

We add all the numbers together, and all the variables

2a-35=0

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

2a=35

a=35/2

a=17+1/2

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