In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
Visa gift card money = $150
Hoodie price = $45
t-shirts price = $7
x = # t-shirts
x = ?
Step 02:
Visa gift card money = Hoodie price + t-shirts price * x
150 = 45 + 7x
150 - 45 = 7x
105 / 7 = x
15 = x
The answer is:
Sean can buy 15 t-shirts.