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-3/4x+1=4/3x+12
We move all terms to the left:
-3/4x+1-(4/3x+12)=0
Domain of the equation: 4x!=0
x!=0/4
x!=0
x∈R
Domain of the equation: 3x+12)!=0We get rid of parentheses
x∈R
-3/4x-4/3x-12+1=0
We calculate fractions
(-9x)/12x^2+(-16x)/12x^2-12+1=0
We add all the numbers together, and all the variables
(-9x)/12x^2+(-16x)/12x^2-11=0
We multiply all the terms by the denominator
(-9x)+(-16x)-11*12x^2=0
Wy multiply elements
-132x^2+(-9x)+(-16x)=0
We get rid of parentheses
-132x^2-9x-16x=0
We add all the numbers together, and all the variables
-132x^2-25x=0
a = -132; b = -25; c = 0;
Δ = b2-4ac
Δ = -252-4·(-132)·0
Δ = 625
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{625}=25$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-25)-25}{2*-132}=\frac{0}{-264} =0 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-25)+25}{2*-132}=\frac{50}{-264} =-25/132 $
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