Question

1) {y=2x-3;
{y=x+1;
2) {2х-у=9;
{3х+2у=4;
3) {5х+3у=7;
{3х-2у=8
4){х+у=9;
{-х+у=-3;​

Answer 1

1)(x,ý)=(4,5)

2)(x, ý)=(22/7,-19,7)

3)(x, ý),=(2,-1)

4)(x, ý)=(6,3)