Question

rezolva ecuatiile in Q:a) 3,18x=12,72 b) 8x=20 c) 5x=21

Answer 1

3,18 x= 12,72 x=12,72 :3,18 x=4
8x=20 x=20:8 x=2 rest 4
5x=21 x=21:5 x=4 rest 1

Answer 2

3,18x=12,72
x=12,72/3,18
x=4

8x=20
x=20/8
x=2rest5

5x=21
x=21/5
x=4rest2