Question
Find the value of 1 unit.
  1. 6 u + 100 = 520
  2. 100 + 6 u = 520
  3. 4 u - 90 = 110
  4. 110 = 4 u - 90
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 + 100 = 520
  2. 100 + 6 u = 520
  3. 4 u - 90 = 110
  4. 110 = 4 u - 90