Question

2y = x + 3

5y = x - 7

What is the solution set of the given system?

{(-1/3, -4/3)}
{(1/3, 4/3)}
{(-29/3, -10/3)}
{(29/3, 10/3)}

Answer 1

multiply second equation with -1 and add to 1st
-3y=10
y=-10/3
x=2y-3=(-20/3)-3=-29/3