Explicație pas cu pas:
X×45=3 735
X=3 735:45
×=83
v:83×45=3 735
62×X=1 178
X=1 178:62
X=19
v:62×19=1 178
X:32=194
X=194×32
X=6 208
v:6 2 08:32=194
X:9=3 816
X=3 816×9
X=34 344
v:34 344:9=3 816
2 823:X=34
X=34×2 823
×=95 982
v:95 982:2 823=34
1 656:X=72
X=1 656:72
x=23
v:1656:23=72