{-6x+2y+6=0 -6; 2
{5x – y-17=0 2 5; -1
{10x-2y-34=0
{-6x+2y+6=0
10x-2y-34+(-6x+2y+6)=0
10x-2y-34-6x+2y+6=0
10x-34-6x+6=0
4x=28
x=7
5x-y-17=0
5.7-y-17=0
35-y-17=0
y=18
d){ 5x+3y-7=0
{2x-y-5=0
y=2x-5=2.2-5=4-5=-1
5x+ 3(2x-5)-7=0
5x+6x-15-7=0
11x=22
x=2
Սեդա Ենգիբարյանի բլոգ 