Question

ii) Simplify:
1
5-x5
4 6
*
2​

Answer 1

Answer:

21

Step-by-step explanation:

step1:(4+5)+30 because 4&5 have minu signs so the can be added

step2:9+30 addition is commutative (means the number in this operation can change their position)so it will be30-9=21