For several political parties, the table shows the approximate percent of votes for the party's presidential candidate that were cast in 1996 by voters in two regions of the United States. Write and solve a system of equations to find the total number of votes for each party (Democrat, Republican, and Other). Use the fact that a total of about 100 million people voted in 1996

Region ---- Democrat (%) ------ Republican (%) ------- Other (%) -------- Total voters(millions)
Northeast 20 15 20 18
South 30 35 25 31.5