Question
Find the value of 1 unit.
  1. 4 u + 5 = 21 - 4 u
  2. 20 - 1 u = 5 u + 2
  3. 3 u - 3 = 21 - 3 u
  4. 53 - 2 u = 5 u - 10
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. 4 u + 5 = 21 - 4 u
  2. 20 - 1 u = 5 u + 2
  3. 3 u - 3 = 21 - 3 u
  4. 53 - 2 u = 5 u - 10