4. Select all systems that are equivalent to this system: {
6d+4.5e = 16.5
45d +4.5e = 4
^{
${
B.
<{
D.
{
{
E.
F.
30d +22.5e 82.5
5d + 0.5e = 4
30d +22.5e 82.5
30d +
3e = 24
f6d+4.5e
16.5
6d+0.6e = 4.8
12d + 9e = 33
10d + 0.5e = 8
6d+4.5e = 16.5
11d + 5e = 20.5
6d+4.5e = 16.5
Sd+0.5e = 4