probably wants you to find what numbers will work for x and y in both equations
add the two equations together 5x-5x+2y+7y=10+8 9y=18 divide both sdies by 9 y=2 subsitute into first equation 5x+2(2)=10 5x+4=10 subtract 4 from both sides 5x=6 divide both sdies by 5 x=6/5
