Answer:
:
Final number of leaves by both: 2 Mark
Steps: 1 Mark
Answer: 1 mark
The first case, Sonu collected 12 leaves and Raju collected x leaves.
Sum of leaves collected by Sonu = 12
Sum of leaves collected by Raju = $x$
After some time, Sonu lost 3 leaves and Raju collected $2x$leaves.
Sum of leaves collected by Sonu = 12 - 3 = 9
Sum of leaves collected by Raju $=2x+x=3x$
Algebraic expression for the total number leaves collected by both $=9+3x$
It is given that, both of them collected equalnumberof leaves,
So, $3x=9$
Or$x=9÷3=3$
Hence, the value of$x$ is $3$.