Question

Daca x = -2/5 si y= 3x+1 , atunci y =

Answer 1

y= 3* (-2/5) +1

y= -6/5 +1

y= (-6+5)/5

y= -1/5

Answer 2

x = -2/5 si y= 3x+1  => y= -2/5*3 +1= -6/5+1=1/5
(Am efectuat la ultima operatie aducere la acelasi numitor)