Question

Va rog repedeeee dau coroana!!!este foarte urgent!!!
Ex 4 (a, b)

Answer 1

Răspuns:

a) x-2*2x=9

x=-3.y=2*(-3)

y=-6.-6=2*(-3)

-3-2*(-6)=9

-6=-6

9=9

b)x+2y=3

y+2x=6

y+2*(3-2y)=6

y=0

x=3-2*0

x=3

3+2*0=3

0+2*3=6

3=3

6=6