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a=2.15/5.08
We move all terms to the left:
a-(2.15/5.08)=0
We add all the numbers together, and all the variables
a-(+2.15/5.08)=0
We get rid of parentheses
a-2.15/5.08=0
We multiply all the terms by the denominator
a*5.08-2.15=0
Wy multiply elements
5.08a-2.15=0
We move all terms containing a to the left, all other terms to the right
5.08a=2.15
a=2.15/5.08
a=2.15/5.08
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