Question
Find the value of 1 unit.
  1. 2 u - 20 = 7 - 1 u
  2. 7 - 1 u = 2 u - 20
  3. 4 u - 1 = 23 - 8 u
  4. 23 - 8 u = 4 u - 1
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

(c)

Click button first when a symbol is required. X

(d)

Click button first when a symbol is required. X

Find the value of 1 unit.
  1. 2 u - 20 = 7 - 1 u
  2. 7 - 1 u = 2 u - 20
  3. 4 u - 1 = 23 - 8 u
  4. 23 - 8 u = 4 u - 1