Question

y=2 y+=y++ y-- +--y​

Answer 1

2=2+2+-------+2

2=2 (1+-------+1) 1+------+1 is ntimes so keep it as n

2=2n

n=1

Answer 2

2=2+2+-------+2

2=2 (1+-------+1) 1+------+1 is ntimes so keep it as n

2=2n

n=1