\(10.\left(\dfrac{5}{3}-\dfrac{3}{7}+9\right)-\left(2+\dfrac{5}{7}-\dfrac{2}{3}\right)+\left(\dfrac{8}{7}-\dfrac{4}{3}-10\right)\)
\(=\left(\dfrac{50}{3}-\dfrac{30}{7}+90\right)-\left(2+\dfrac{5}{7}-\dfrac{2}{3}\right)+\left(\dfrac{8}{7}-\dfrac{4}{3}-10\right)\)
\(=\dfrac{50}{3}-\dfrac{30}{7}+90-2-\dfrac{5}{7}+\dfrac{2}{3}+\dfrac{5}{7}-\dfrac{4}{3}-10\)
\(=\left(\dfrac{50}{3}+\dfrac{2}{3}-\dfrac{4}{3}\right)-\left(\dfrac{30}{7}-\dfrac{5}{7}+\dfrac{5}{7}\right)+\left(90-10-2\right)\)
\(=16-\dfrac{30}{7}+78\)
\(=94-\dfrac{30}{7}\)
\(=\dfrac{628}{7}\)
`(5/3-3/7+9)-(2+5/7-2/3)+(8/7-4/3-10)`
`=5/3 - 3/7 + 9 - 2 - 5/7 + 2/3 + 8/7 - 4/3-10`
`=(5/3+2/3-4/3)+(-3/7-5/7+8/7)+(9-2-10)`
`=((5+2-4)/3)+((-3-5+8)/7) + (9-2-10)`
`=3/3 + 0 +(-3)`
`=1+0-3`
`=-2`
