Question

A Preschool class has 3-year olds and 4-year olds. There are 17 children in the class, and the total of their ages is 63. Which system of linear equations represents the problem?

four x plus three y equals sixty-three x plus y equals seventeen

four x plus three y equals seventeen x plus y equals sixty-three

three x plus four y equals sixty-three x plus y equals seventeen y

three x plus four y equals seventeen x plus y equals sixty-three