Question

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?

Answer 1

She bought 11 shirts and 4 pants

Let x= pants
Let y= shirts


x+y=15
x+7=y
x=y-7
(y-7)+y=15
2y=22
y=11

x+y=15
11+x=15
x=4

Therefore, Elaine bought 11 shirts and 4 pants

Answer 2

11 shirts and 4 pants.

Explanation:

Let x be the number of shirts and y be the number of pants,

So, the total shirts and pants = x + y

According to the question,

x + y = 15 ----(1),

Also, shirts are 7 more than pants,

i.e. x = y + 7

Substitute this value in equation (1),

y + 7 + y = 15

2y + 7 = 15

2y = 8

⇒ y = 4

Again from equation (1),

x + 4 = 15

⇒ x = 11

Hence, she bought 11 shirts and 4 pants.