Question

Me ajudem a resolver {2x + y =5
{X - 3y =0

Answer 1

$\\x - 3y =0 \\x=3y \\ \\2x + y =5 \\2*(3y)+y=5 \\6y+y=5 \\7y=5 \\y= \frac{5}{7} \\ \\x=3y \\x=3*\frac{5}{7} \\x= \frac{15}{7}$