Question
Find the value of 1 unit.
  1. 7 u + 50 = 120
  2. 50 + 7 u = 120
  3. 4 u - 30 = 210
  4. 210 = 4 u - 30
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. 7 u + 50 = 120
  2. 50 + 7 u = 120
  3. 4 u - 30 = 210
  4. 210 = 4 u - 30