Solve for xxx: dfrac20x−19=dfrac21x+19\\dfrac{20}{x - 19} = \\dfrac{21}{x + 19}dfrac20x−19=dfrac21x+19
x=779x = 779x=779
x=817x = 817x=817
x=741x = 741x=741
x=41x = 41x=41