Question 526433
1) 2D+3=13 
2) 12E-3=0



1)
2D+3=13
2D+3-3=13-3
2D=13-3
2D=10
2D/2=10/2
D=5



2) 
12E-3=0
12E-3+3=0+3
12E=3
12E/12=3/12
E=1/4