Question

34. Află valoarea lui a: a) 27: [26+ (6 × a- 7× 3): 9] + (13-2×2× 3) = 2; ​

Answer 1

Salut!

27: [26+ (6 × a- 7× 3): 9] + (13-2×2× 3) = 2

27:[26 +(6a-21):9] + 1=2 /-1

27:[26 +(6a-21):9] =1 /×27

26+(6a-21):9=27/-26

(6a-21):9=1/×9

6a+21=9/-21

6a=-12/:6

a=-2

Răspuns final -2.

Sper ca te am ajutat.Spor la teme