Question

afla in fiecare caz valoarea lui a:

Answer 1

8a=24
a=24:8=3

36=6a
a=36:6=6

12=2a
a=12:2=6

9a=18
a=18:9=2

Answer 2

14 .
A × 8 = 6 × 4
a × 8 = 24
a = 24 : 8
a = 3

3 × 8 = 6 × 4

9 × 4 = 6 × a
36 = 6 × a
a = 36 : 6
a = 6

9 × 4 = 6 × 6

4 × 3 = 2 × a
12 = 2 × a
a = 12 : 2
a = 6

4 × 3 = 2 × 6

9 × a = 6 × 3
9 × a = 18
a = 18 : 9
a = 2

9 × 2 = 6 × 3