Patrick B. answered 01/22/21
Math and computer tutor/teacher
NONE OF THOSE answers are correct
then y = x-13
-4x -15 (x-13) = 17
-4x -15x + 195 = 17
-19x + 195 = 17
-19x = 17-195
-19x = -178
x = -178/-19 = 178/19 = 9 + 7/19
y = 178/19 - 13/1 = 178/19 - 247/19= -69/19
-4x-15y = (-4)(178/19) - 15(-69/19)
= -712/19 + 1035/19
= 323/19
= 17
-x+y = -178/19 + -69/19 = -247/19 = -13
Araoye I.
01/22/21