Question

Kayla has a tshirt store. she sold three times as many white tshirts as blue tshirts. she sold a total of 48 tshirts. How many white tshirts did kayla sell

Answer 1

First make the equation:

1. x
2. 3x

x + 3x = 48

Now solve it:
x + 3x = 48
4x= 48
x=12

Now plug in x 
1. x = 12
2. 3x = 36

So Kayla sold 12 blue t-shirts and 36 white t-shirts.