# SOLUTION: SOlve using the multiplication principle first, then use the elimination method: 7p+5q=2 8p-9q=17, I came up with p=1, q=1, however I plugged this into a different site to double

Algebra ->  Algebra  -> Systems-of-equations -> SOLUTION: SOlve using the multiplication principle first, then use the elimination method: 7p+5q=2 8p-9q=17, I came up with p=1, q=1, however I plugged this into a different site to double      Log On

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 Question 375882: SOlve using the multiplication principle first, then use the elimination method: 7p+5q=2 8p-9q=17, I came up with p=1, q=1, however I plugged this into a different site to double check my work and was told something different. Answer by Fombitz(13828)   (Show Source): You can put this solution on YOUR website!A different site? The quickest and easiest way is to just plug the results into the original equations. . . . . The results are not good. . . . 1. 2. Now use either equation to solve for q.