text: solve the problem? 3 over 5x +y =4 1 over 5x-y = 4 3/(5x+y)=4 multiplying by (5x+y) 3=4(5x+y) 20x+4y=3     (1) 1/(5x-y)=4 multiplying by 5x-y 1=4(5x-y) 20x-4y=1    (2) (1)+(2) 40x=4 dividing by 40 x=1/10 sub in (2) 2-4y=1 adding -2 -4y=-1 dividing by -4 y=1/4