Question

Sisteme de 2 ecuatii cu 2 necunoscute
Metoda substitutiei:
/ = supra

x+1/2 + y+3/4 = 2
{
x-1/3 + 3-y/6 =1

Answer 1

x+1/2+y+3/4=2

x+5/4+y=2

x=2-5/4-y

x=3/4-y | y € R

x-1/3+3-y/6=1

x+8/3-y/6=1

x=1-8/3+y/6

x=-5/3+y/6

x=-5/3 | y € R