Question

resolver por sustitucion 2X-Y=8 ; X+5y=15​

Answer 1

2x-y= 8

x+5y=15

x=15-5y

Sustitución

2(15-5y)-y= 8

30-10y-y= 8

30-11y= 8

30-8= 11y

22= 11y

y= 22/11

y= 2

x= 15-5y

x= 15-5×2

x= 15-10

x=5