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(1/2)19x-26=6x=31
We move all terms to the left:
(1/2)19x-26-(6x)=0
Domain of the equation: 2)19x!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
(+1/2)19x-6x-26=0
We add all the numbers together, and all the variables
-6x+(+1/2)19x-26=0
We multiply parentheses
19x^2-6x-26=0
a = 19; b = -6; c = -26;
Δ = b2-4ac
Δ = -62-4·19·(-26)
Δ = 2012
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{2012}=\sqrt{4*503}=\sqrt{4}*\sqrt{503}=2\sqrt{503}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-6)-2\sqrt{503}}{2*19}=\frac{6-2\sqrt{503}}{38} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-6)+2\sqrt{503}}{2*19}=\frac{6+2\sqrt{503}}{38} $
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