Question

afla, in fiecare caz , valoarea lui a
2x3 egal ax6

3xa egal 2x9

Answer 1

2 x 3 = a x 6
6 = a × 6 
a = 6 : 6 
a = 1 

Verific:   2 × 3 = 1 × 6 = 6 


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

Verific:   3 × 6 = 2 × 9 = 18