Question 1072178
-12d - 7e = 48
5d + e = 3; e=-5d+3
-12d-7(-5d+3)=48
23d-21=48
23d=69
d=3
-----------
-36-7e=48
-7e=84
e=-12
-----------
Check in last equation
5(3)-12=3 which checks
d is 3