Question

método de igualación
-x+2y=4
2x-4y=3

Answer 1

-0+2y=4  0+=0-2y 0=0-2y=0  2x-4y=3 2x=-2+4yx=+2+4y=2 x-2=x=+2+4=2 (x-2y)x=2(+2+4y) 0-xy=+4+8y 0y-8y=+x+4 =8y=+4y+4=8 0x-2y(2,0)=4 0x-4,0=4 mcm=0 0x-4=0 =0x=0-4 =0-4+4=0