A bookstore sells books. Paperpack books cost $2 while hardback books cost $6. The store sold 50 books totaling $164. How many hardback books were sold? *

16

Step-by-step explanation:

6x + 2(50-x)=164

6x + 100-2x=164

4x + 100=164

4x=64

x=16

I hope this helps :)

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graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.