Question

calculati -l pe a;
72:8xa=50-5
56:8xa=9+4
72:8xa=45
81:9xa=72
2x4:a=4

Answer 1

2×4:a=4
8:a=4
a=1/2
81:9×a=72
a=8
72:8×a=45
a=5
56:8×a=13
a=13/7
si prima e la fel ca penultima scrisa de mine

Answer 2

72:8xa=50-5
9×a=45
a=45:9
a=5


56:8xa=9+4
7×a=13
a=13:7
a=1 rest 6


72:8xa=45
9×a=45
a=45:9
a=5


81:9xa=72
9×a=72
a=72:9
a=8


2x4:a=4
8:a=4
a=8:4
a=2

Dacă tu crezi că merit, astept coroana!