Question

40-21:x+17=54. Va rog ofer 5 puncte

Answer 1

40-21:x=54-17
40-21:x=37
40-37=21:x
3=21:x
x=21:3
x=7

Answer 2

40-21:x=54-17
40-21:x=37
21:x=40-37
21:x=3
x=21:3
x=7
40-21:7+17=54
               54=54