Math Question Help

Question

Dots sells a total of 290 T-shirts ($2) and shorts ($4). In April, total sales were $678. How many T-shirts and shorts did Dots sell? Hint: Let S = Shorts.
 

Answer 1

no. of  T shirts = T

no. of  shorts = S

 

T+S = 290

T= 290 -S

2T +4S = 678

2(290 -S) +4S =678

580 -2S +4S =678

580 +2S =678

2S = 98

S = 49

T= 290-49= 241