Question

Sean spent $38 for shorts. This was $4 less than twice what he spent for a shirt. The equation 2x − 4 = 38 can be used to find the cost of the shirt (x). How much did Sean spend on the shirt? A) $19 B) $21 C) $24 D) $28

Answer 1

Answer: B) $21

Step-by-step explanation:

Given : Sean spent $38 for shorts.

This was $4 less than twice what he spent for a shirt.

Let x denotes the cost of shirt.

The equation $2x-4 = 38$ is set to find the cost of the shirt (x).

To solve the above equation for x , first we add4 on both the sides , we get

$2x=42$

Divide both sides by 2  , we get

$x=21$

Thus , the cos of shirt = $21

Hence, Sean spent $21 on the shirt.

∴ The correct option is B) $21

Answer 2

Answer:

b

Step-by-step explanation:

2x-4=38

-4+4=38+4

2x=42

2x/2=x 42/2= 21

x=21