0.125x divide by ( 19/24 − 21/40 )·8 7/16 = (1 28 /63 − 17/21 )·0.7 divide by 0.675·2.4−0.02

What is x?????


BTW, this is a skanavi. At least its what we call in RSM (Russian School of Mathematics) that's where I go for advanced math classes.