Elaine bought a total of 15 shirts and pairs of pants. She bought 7 more shirts than pants. How many of each did she buy?

Question

A word problem that needs to be solved using substitution.

Answer 1

s = # shirts

p = # pants

 

s + p = 15

s = p + 7

 

p + 7 + p = 15

2p + 7 = 15

2p = 8

p = 4 pairs of pants

 

s = p+7 = 11 shirts