{2x+2y=14
{x-3y=-5
x=3y-5
2(3y-5)+2y=14
6y-10+2y=14
(8y=14+10)/8
y=3
x=3*3-5
x=4
Объяснение:
{x-10y=1
{2x+3y=48
x=1+10y
2(1+10y)+3y=48
2+20y+3y=48
(23y=48-2)/23
y=2
x=1+10*2
x=21
{2x+2y=14
{x-3y=-5
x=3y-5
2(3y-5)+2y=14
6y-10+2y=14
(8y=14+10)/8
y=3
x=3*3-5
x=4
Объяснение:
{x-10y=1
{2x+3y=48
x=1+10y
2(1+10y)+3y=48
2+20y+3y=48
(23y=48-2)/23
y=2
x=1+10*2
x=21