Question

problemas de igualacion resolver: X+5y=8 4x+3y=15

Answer 1

Respuesta:

X+5y=8

4x+3y=15

Despejamos a X

X=8-5y

X=(15-3y)/4

Luego igualamos X

8-5y=(15-3y)/4

4(8-5y)=15-3y

32-20y=15-3y

32-15=-3y+20y

17=17y

17/17=y

1=y

X+5y=8

X+5×1=8

X+5=8

X=8-5

X=3

Y=1

Y=3