I need help with questions 14 and 15

Firefox File Edit View History Bookmarks Tools Window Help 29% Sun 1:37:49 AM Q . . . VA HW 6.1 - Systems of Equations - X Homework X + https://www.webassign.net/web/Student/Assignment-Responses/last?dep=23830346 E 14. [-/0.44 Points] DETAILS 0/30 Submissions Used MY NOTES Find all solutions of the given system of equations and check your answer graphically. HINT [See Examples 2-5.] (If there is no solution, enter NO SOLUTION. If the system is dependent, express your answer in terms of x, where y = y(x).) X-y = 0 x+ y = 8 ( x, y ) = Need Help? Talk to a Tutor 15. [-/0.44 Points] DETAILS 0/30 Submissions Used MY NOTES Find all solutions of the given system of equations and check your answer graphically. HINT [See Examples 2-5.] (If there is no solution, enter NO SOLUTION. If the system is dependent, express your answer in terms of x, where y = y(x).) x-y =0 x+y = -4 ( x, y ) = Need Help? Watch It Talk to a Tutor JUN 35 21