Question

the perimeter of a triangle whose sides are 2y+3z, z-y, 4y-2z is

Answer 1

(2y+3z)+(z-y)+(4y-2z)
= 5y+2z

Answer 2

perimeter of triangle =a+b+c
=2y+3z+z-y+4y-2z
=5y+2z