For example, 5.2-x = 1.721/x = 8.478-x = 32

For example, 5.2-x = 1.721/x = 8.478-x = 32

5.2-X=1.7
x=5.2-1.7=3.5
21/X=8.4
x=21/8.4=1/0.4=5/2
78-X=32
x=78-32=46