Question

daca 2a-2 supra b-3= 2 supra 3 atunci 2a+b supra 3b-a=?​

Answer 1

Răspuns:

Explicație pas cu pas:

( 2 a - 2 ) / (b - 3 ) = 2/3

3 × 2(a - 1 ) = 2 ( b - 3 )  l  : 2

3 a - 3 = b - 3

b = 3 a - 3 + 3

b = 3 a

__________________

( 2 a + b ) / ( 3 b - a ) = 5/8

= ( 2 a + 3 a ) / ( 3 x 3 a - a ) =

= 5 a / 8 a =

= 5/8