Question 57406
66X=90(X-2/3)
66X=90X-90*2/3
66X=90X-180/3
66X=90X-60
66X-90X=-60
-24X=-60
X=-60/-24
X=2.5
66*2.5=165 KM
90(2.5-2/3)
90(11/6)
990/6=165 KM