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3=(3e)/(4e+7)+2
We move all terms to the left:
3-((3e)/(4e+7)+2)=0
Domain of the equation: (4e+7)+2)!=0We multiply all the terms by the denominator
e∈R
-(3e+3*(4e+7)+2)=0
We calculate terms in parentheses: -(3e+3*(4e+7)+2), so:We get rid of parentheses
3e+3*(4e+7)+2
We multiply parentheses
3e+12e+21+2
We add all the numbers together, and all the variables
15e+23
Back to the equation:
-(15e+23)
-15e-23=0
We move all terms containing e to the left, all other terms to the right
-15e=23
e=23/-15
e=-1+8/15
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