Question
Find the value of 1 unit.
  1. 2 u + 50 = 150
  2. 50 + 2 u = 150
  3. 4 u - 80 = 160
  4. 160 = 4 u - 80
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 + 50 = 150
  2. 50 + 2 u = 150
  3. 4 u - 80 = 160
  4. 160 = 4 u - 80