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2/5a=-10
We move all terms to the left:
2/5a-(-10)=0
Domain of the equation: 5a!=0We add all the numbers together, and all the variables
a!=0/5
a!=0
a∈R
2/5a+10=0
We multiply all the terms by the denominator
10*5a+2=0
Wy multiply elements
50a+2=0
We move all terms containing a to the left, all other terms to the right
50a=-2
a=-2/50
a=-1/25
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