Răspuns :
La prima
(x:4)*3=15 | :3
x:4=5 | *4
x=20
La a 2-a
24:x=8/6/4/3
24:x=(8/6)*(3/4)
24:x=1 | *24
x=24
(x:4)*3=15 | :3
x:4=5 | *4
x=20
La a 2-a
24:x=8/6/4/3
24:x=(8/6)*(3/4)
24:x=1 | *24
x=24
1. ( x:4 )*3=15
(x:4)=15:3
(x;4)=5
x=5*4
x=20
2. 24:x=8/6*4/3
24:x=32/18
24/1 : x = 32/18
x=32/18 * 24/1
x = 768/18
(x:4)=15:3
(x;4)=5
x=5*4
x=20
2. 24:x=8/6*4/3
24:x=32/18
24/1 : x = 32/18
x=32/18 * 24/1
x = 768/18