Question

Kate bought 8 sweaters that each cost the same amount and 1 skirt that cost $40. The items she bought cost a total of $320 before tax was added

Answer 1

Let x=the cost of the sweaters.

8x+40=320.

Isolate the 8x. 

320-40=280.

8x=280
 
280/8=35.      Each sweater cost 35 D0llaz