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4/5x+1/2x=5.2
We move all terms to the left:
4/5x+1/2x-(5.2)=0
Domain of the equation: 5x!=0
x!=0/5
x!=0
x∈R
Domain of the equation: 2x!=0We add all the numbers together, and all the variables
x!=0/2
x!=0
x∈R
4/5x+1/2x-5.2=0
We calculate fractions
8x/10x^2+5x/10x^2-5.2=0
We multiply all the terms by the denominator
8x+5x-(5.2)*10x^2=0
We add all the numbers together, and all the variables
13x-(5.2)*10x^2=0
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