The residents of a city voted on whether to raise property taxes. the ratio of yes votes to no votes was 2 to 3 . if there were 1899 no votes, what was the total number of votes?

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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.