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1.4+2/5x=3/15x-0.8
We move all terms to the left:
1.4+2/5x-(3/15x-0.8)=0
Domain of the equation: 5x!=0
x!=0/5
x!=0
x∈R
Domain of the equation: 15x-0.8)!=0We get rid of parentheses
x∈R
2/5x-3/15x+0.8+1.4=0
We calculate fractions
30x/75x^2+(-15x)/75x^2+0.8+1.4=0
We add all the numbers together, and all the variables
30x/75x^2+(-15x)/75x^2+2.2=0
We multiply all the terms by the denominator
30x+(-15x)+(2.2)*75x^2=0
We get rid of parentheses
30x-15x+(2.2)*75x^2=0
We add all the numbers together, and all the variables
15x+(2.2)*75x^2=0
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