Question

6 13+ 24 – 8 Xa= 10:2
Probă: .......​

Answer 1

Răspuns:

13 + 24 - 8 × a = 10 : 2

13 + 24 - 8 × a = 5

37 - 8 × a = 5

37 - 5 = 8 × a

32 = 8 × a

a = 4

Answer 2

Răspuns:

613 + 24 - 8 x A = 10 : 2

613 + 24 - 8 x A = 5

637 - 8 x A  = 5

8 x A = 637 - 5

8 x A = 632

A = 632 : 8

A = 79

Proba :

613 + 24 - 8 x 79 = 5

613 + 24 - 632 = 5

637 - 632 = 5

5