Plz help me I do not get this

Step-by-step explanation:

Let the cost of one t-shirt = t

And the cost of one sweatshirt = s

Since, Jayden sells 9 t-shirts and 3 sweatshirts for $420,

9t + 3s = 420

3t + s = 140 (1)

And Carson sells 1 t-shirt and 6 sweatshirts for $296,

t + 6s = 296 (2)

Equation (1) multiplied by 6 then subtracted from equation (2)

(t + 6s) - 6(3t + s) = 296 - 6(140)

(t - 18t) + (6s - 6s) = 296 - 840

-17t = -544

t = $32

From equation (1),

3(32) + s = 140

s = 140 - 96

s = $44

This solution shows that cost one t-shirt is same for both sellers Carson and Jayden.

i think it might be a but you might want a second opinion