4х+у= -10
5х-2у= -19
y=-10-4x
5x-2y=-19 *
*5x-2y=-19
5x-2*(-10-4x)=-19
5x+20+8x=-19
13x=-19-20
13x=-39
x=-3
y=-10-4*(-3)=-10+12=2
4х+у= -10
5х-2у= -19
y=-10-4x
5x-2y=-19 *
*5x-2y=-19
5x-2*(-10-4x)=-19
5x+20+8x=-19
13x=-19-20
13x=-39
x=-3
y=-10-4*(-3)=-10+12=2