Question

Aflati cifra x astfel incat: a) (51x,2)=1 b) (x27,3)=1 c) (7x2,5)=1 d) (3x,5)=1
VA ROG REPEDE DAU COROANA

Answer 1

a) x={1, 3, 5, 7, 9}
b) x={1, 2, 4, 5, 7,8}
c) x={0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
d) x={1, 2, 3, 4, 6, 7, 8, 9}