Question

Metodo de sustitución porfa ayúdeme
)2x-y=4
x+5y=1

Answer 1

2x-y=4

x+5y=1⇒x=1-5y=1-5·(-2/11)=1-(-10/11)=1+10/11=21/11

2(1-5y)-y=4

2-10y-y=4

2-11y=4

2-4=11y

-2=11y

-2/11=y

①y= -2/11

②x=21/11