Answer:
$30 for a sweater
Explanation:
Let's say x is shirts and y is sweaters.
2x+y=60
x+2y=75
We can see that a sweater costs $15 more than a shirt.
You can sort of just guess and check since you cannot solve this using equations.
Let's guess shirts cost $15 and sweaters cost $30
(2×15)+30=
30+30=
60
These prices are correct for our first equation.
15+(30×2)=
15+60=
75
These prices are correct for our second equation.
If the prices both fit, then this must be the correct answer for both of the prices.