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2.8/x=4
We move all terms to the left:
2.8/x-(4)=0
Domain of the equation: x!=0We multiply all the terms by the denominator
x∈R
-4*x+2.8=0
We add all the numbers together, and all the variables
-4x+2.8=0
We move all terms containing x to the left, all other terms to the right
-4x=-2.8
x=-2.8/-4
x=1/1.4285714285714
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