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19x-4+12x=16x-1+14/0.33x
We move all terms to the left:
19x-4+12x-(16x-1+14/0.33x)=0
Domain of the equation: 0.33x)!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
19x+12x-(16x+14/0.33x-1)-4=0
We add all the numbers together, and all the variables
31x-(16x+14/0.33x-1)-4=0
We get rid of parentheses
31x-16x-14/0.33x+1-4=0
We multiply all the terms by the denominator
31x*0.33x-16x*0.33x+1*0.33x-4*0.33x-14=0
Wy multiply elements
0x^2+0x^2+0x+0x-14=0
We add all the numbers together, and all the variables
2x^2+2x-14=0
a = 2; b = 2; c = -14;
Δ = b2-4ac
Δ = 22-4·2·(-14)
Δ = 116
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{116}=\sqrt{4*29}=\sqrt{4}*\sqrt{29}=2\sqrt{29}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(2)-2\sqrt{29}}{2*2}=\frac{-2-2\sqrt{29}}{4} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(2)+2\sqrt{29}}{2*2}=\frac{-2+2\sqrt{29}}{4} $
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