Question 1063608

a textbook store sold a combined total of 229 chemistry and math textbooks in a week. the number of chemistry textbooks sold was 53 more than the number of math textbooks sold. how many textbooks of each type were sold
<pre>Let the number of chem books be C, and number of math, M
Then we get: C + M = 229 ------- eq (i)
Also, C = M + 53 ------- eq (ii)
I hope you know what to do now, because I think I've done most of the work for you.
<b>Hint:</b> I would use SUBSTITUTION!