2+2a+3.5=12

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Solution for 2+2a+3.5=12 equation: 



2+2a+3.5=12

We move all terms to the left:

2+2a+3.5-(12)=0

We add all the numbers together, and all the variables

2a-6.5=0

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

2a=6.5

a=6.5/2

a=3+0.5/2

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