15-/______________/=10
/__/=15-10
/__/=5
3+[64-2×(29-29:m)]:7
3+/____________/=5
/__/=2
[64-2×(29-29:m)]:7=2
/____________/=7×2
/____________/=14
64-2×(29-29:m)=14
64-/________/=14
/_____/=64-14
/_____/=50
2×(29-29:m)=50
2×/______/=50
/_____/=50:2
/_____/=25
29-29:m=25
29:m=29-25
29:m=3
m=29:3
m=9rest2
/_____/=acolada