Question
Find the value of 1 unit.
  1. 6 u + 20 = 500
  2. 20 + 6 u = 500
  3. 3 u - 100 = 200
  4. 200 = 3 u - 100
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. 6 u + 20 = 500
  2. 20 + 6 u = 500
  3. 3 u - 100 = 200
  4. 200 = 3 u - 100