27 students in a class had one vote for a class captain. They voted for Ben, Erin and Tim. Ben got 3 more votes than Erin. Ben got 6 more votes than Tim. How many votes did Ben get ?
Set Tim to equal x, Erin to equal x+3 and Ben to equal x+6, the equation would be: x + x + 3 + x + 6 = 27. Combine like terms, 3x + 9 = 27; 3x = 18; x = 6. So Tim got 6 votes, Erin got 9 votes and Ben got 12 votes.
