Question
Find the value of 1 unit.
  1. 6 u + 90 = 510
  2. 90 + 6 u = 510
  3. 4 u - 10 = 230
  4. 230 = 4 u - 10
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 + 90 = 510
  2. 90 + 6 u = 510
  3. 4 u - 10 = 230
  4. 230 = 4 u - 10