Question

students of a class are made to stand in rows if one student is extra in a row there would be 2 rows less if one student is less in a row there would be 3 rows more find the number of student in the class

Answer 1

xy=(x+1)(y-2)            xy=(x-1)(y+3)
xy=xy-2x+y-2            xy=xy+3x-y-3

2x-y+2=0                  0=3x-y-3

2x-y+2=0

-3x+y+3=0

=>-x+5=0

=>x=5

=>y=5*2+2=12

Answer 2

Answer : xy=(x+1)(y-2)            xy=(x-1)(y+3)

xy=xy-2x+y-2            xy=xy+3x-y-3

2x-y+2=0                  0=3x-y-3

2x-y+2=0

-3x+y+3=0

=>-x+5=0

=>x=5

=>y=5*2+2=12