afla termenul necunoscut: a) 243x17+a= b) 475x37-a =12348

Răspuns:
475×37-a=12348
(facem inmultirea)
17575-a=12348
a=17575-12348
a= 5227
243×17+a=
4131+5227= 9358
475×37-a=12348a=12348-17575=5227,243×17+a=a=4131