Răspuns :
9 * 4 + 1 = 37
15 * 3 + 3 = 48
6 * 3 + 3 = 21
2 * 8 + 1 = 17
9 : 6 = 1 rest 3
43 : 7 = 6 rest 1
15 * 3 + 3 = 48
6 * 3 + 3 = 21
2 * 8 + 1 = 17
9 : 6 = 1 rest 3
43 : 7 = 6 rest 1
9:x=4,1
9=4x+1
9-1=4x
8=4x
x=2
15:x=3.3
15=3x+3
15-3=3x
12=3x=> x=4
x:6=3.3
x=3*6+3
x=18+3
x=21
x:2=8.1
x=2*8+1
x=16+1
x=17
9:6=1,5 deci cat1, rest 5
6
---
30
30
---
0
43:7=6,14
42
----
10
7
----
30
28
----
20
9=4x+1
9-1=4x
8=4x
x=2
15:x=3.3
15=3x+3
15-3=3x
12=3x=> x=4
x:6=3.3
x=3*6+3
x=18+3
x=21
x:2=8.1
x=2*8+1
x=16+1
x=17
9:6=1,5 deci cat1, rest 5
6
---
30
30
---
0
43:7=6,14
42
----
10
7
----
30
28
----
20