Question
Find the value of 1 unit.
  1. 8 u + 30 = 670
  2. 30 + 8 u = 670
  3. 8 u - 100 = 460
  4. 460 = 8 u - 100
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. 8 u + 30 = 670
  2. 30 + 8 u = 670
  3. 8 u - 100 = 460
  4. 460 = 8 u - 100