X *9=36720 80560:y=40. z:60=4260

1) х*9=36720
х=36720:9
х=4080

2) 80560:у=40
у=80560:40
у=2014

<span>X *9=36720
X=36720/9
X=</span>4080
<span>80560:y=40
1/y=40/80560
y=</span>80560/40
y=2014
z:60=4260
z=4260*60
z=<span>255600</span>