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ex 22 urgenttttt plzz


Ex 22 Urgenttttt Plzz class=

Răspuns :

2a+7b=3k
17a+16b=
2a+7b+15a+9b
=3k+15a+9b=3(k+5a+3b)
3 | 3(k+5a+3b)

32a+43b=5k
32a+43b=2a+3b+30a+40b=5k
2a+3b=5k-30a-40b=5(k-6a-8b)

5 | 5(k-6a-8b)