Question
Find the value of 1 unit.
  1. 6 u + 30 = 210
  2. 30 + 6 u = 210
  3. 8 u - 70 = 90
  4. 90 = 8 u - 70
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 + 30 = 210
  2. 30 + 6 u = 210
  3. 8 u - 70 = 90
  4. 90 = 8 u - 70