X/3 + y/4 - 5 = 0 { 2x - y = 10;

Question

X/3 + y/4 - 5 = 0
{
2x - y = 10;

Answer 1

4х+3y-60=0
{
y=2x-10

4х+3(2х-10)-60=0
4х+6х-30-60=0
10х=90
х=9

y=18-10
y=8
Ответ:(9;8)