Question

Stiind ca 2a-b supra a+3b=3 supra 19 calculati a supra b.​

Answer 1

Răspuns:

Stiind ca (2a-b) /( a+3b)=3/19

calculati a / b.

b(2a/b-1)/b(a/b+3)=3/19

(2a/b-1)×19=3(a/b+3)

38a/b-19=3a/b+3

35a/b=22

a/b=22/35