Question

5/у +3 - 3/у =2-у/у2+3у

Answer 1

Общий знаменатель ( y^2 + 3y ) = y( y + 3 )
y не равен 0 и ( - 3 )
( 5y - 3( y + 3 )/( y^2 + 3y ) = ( 2 - y )/( y^2 + 3y )
5y - 3y - 9 = 2 - y
2y + y = 2 + 9
3y = 11
y = 11/3
y = 3 2/3