Question

A farmer plants corn and wheat on a 180-acre farm. The farmer wants to plant three times as many acres of corn as wheat. Write a system of linear equations that represents this situation. Use xx to represent the number of aces of corn planted and yy to represent the number of acres of wheat planted. How many acres of each crop should the farmer plant?
R_scott
xx + yy = 180

xx = 3 yy

solve the system ... substitution is probably the best approach