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4/b-2=3-b
We move all terms to the left:
4/b-2-(3-b)=0
Domain of the equation: b!=0We add all the numbers together, and all the variables
b∈R
4/b-(-1b+3)-2=0
We get rid of parentheses
4/b+1b-3-2=0
We multiply all the terms by the denominator
1b*b-3*b-2*b+4=0
We add all the numbers together, and all the variables
-5b+1b*b+4=0
Wy multiply elements
b^2-5b+4=0
a = 1; b = -5; c = +4;
Δ = b2-4ac
Δ = -52-4·1·4
Δ = 9
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{9}=3$$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-5)-3}{2*1}=\frac{2}{2} =1 $$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+3}{2*1}=\frac{8}{2} =4 $
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