Question
Find the value of 1 unit.
  1. 5 u + 30 = 80
  2. 30 + 5 u = 80
  3. 4 u - 100 = 180
  4. 180 = 4 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. 5 u + 30 = 80
  2. 30 + 5 u = 80
  3. 4 u - 100 = 180
  4. 180 = 4 u - 100