Question

Metodo de igualacion - 4x+10y=-2

-2x-4y=-6

Answer 1

-4x+10y=-2

-4x=-2-10y

x=(-2-10y)/-4

-2x-4y=-6

-2x=-6+4y

x=(-6+4y)/-2

(-2-10y)/-4=(-6+4y)/-2

-2(-2-10y)=-4(-6+4y)

4+20y=24-16y

20y+16y=24-4

36y=20

y= 20/36= 5/9

y=5/9

-2x-4(5/9)=-6

-2x-20/9=-6

-2x=20/9-6

-2x=-34/9

x=(-34/9)/-2

x=17/9

Comprobación

-4x+10y=-2

-4(17/9)+10(5/9)=-2

-68/9 + 50/9= -2

-18/9=-2

-2x-4y=-6

-2(17/9)-4(5/9)=-6

-34/9-20/9=-6

-54/9=-6