Question

which digits have been replaced by question marks in this sum: ?1 - ?2 = 34

Answer 1

Answer:

Step-by-step: taking question mark as x then:

Answer 2

Answer:    

The series will be : -34 × 1 - (- 34) × 2 = 34

Step-by-step explanation:

The series is given to be : ?1 - ?2 = 34

We need to replace the ? on the L.H.S. to get the required answer 34 on R.H.S

⇒ ?1 - ?2 = 34

⇒ ? × (1 - 2) = 34

⇒ ? × -1 = 34

⇒ ? = -34

So, ? will be replaced by -34

Hence, The series will be : -34 × 1 - (- 34) × 2 = 34