Răspuns :
p=i+2u
3i=6u |:3
i=2u
p=i+2u
p=2u+2u
p=4u
2i+12u=2×2u+12u=4u+12u=16u
16u:p=16u:4u=4
3i=6u |:3
i=2u
p=i+2u
p=2u+2u
p=4u
2i+12u=2×2u+12u=4u+12u=16u
16u:p=16u:4u=4
p=i+2u
3i=6u
3i=6u
i=6u:3
i=2u
p=i+2u
înlocuim i cu 2u
avem
p=2u+2u
p=4u
2x2u+12u=? p
4u+12u=16u
p=4u→16u:4u=4p
deci se pot cumpara 4p (papusi)
3i=6u
3i=6u
i=6u:3
i=2u
p=i+2u
înlocuim i cu 2u
avem
p=2u+2u
p=4u
2x2u+12u=? p
4u+12u=16u
p=4u→16u:4u=4p
deci se pot cumpara 4p (papusi)