Question
Find the value of 1 unit.
  1. 3 u + 30 = 270
  2. 30 + 3 u = 270
  3. 7 u - 40 = 240
  4. 240 = 7 u - 40
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. 3 u + 30 = 270
  2. 30 + 3 u = 270
  3. 7 u - 40 = 240
  4. 240 = 7 u - 40