Question
Find the value of 1 unit.
  1. 6 u + 80 = 380
  2. 80 + 6 u = 380
  3. 9 u - 40 = 410
  4. 410 = 9 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. 6 u + 80 = 380
  2. 80 + 6 u = 380
  3. 9 u - 40 = 410
  4. 410 = 9 u - 40