Question

a pencil is 8 cm long and longer pencil is c cm long the difference in their length is 7 cm

Answer 1

Dear friend,

Length of smaller pencil is 8 cm

Length of longer pencil is c cm

Then,
Difference in their length is 7cm

So, length of the longer pencil is

c - 8cm = 7cm
c = (7 + 8) cm
c = 15 cm

Answer. The length of the longer pencil is 15 cm.

Hope it helps !!!

Answer 2

Hi ☺
Your answer..

Smaller pencil is 8cm long

And Longer pencil is c cm

Their Difference = 7cm

c-8 = 7

c = 7+8

c = 15cm

☺☺