Jacob is a construction worker who earns a yearly income given by the expression 2,000x+6,000 where x is the number of hours he works each week. Carlos works with Jacob and earns a yearly income given by the expression 3,500x - 39,000. A manager predicts that if Carlos and Jacob each work 35 hours. , they will earn the same amount of money. The number of hours that makes the equation 2,000x + 3,500x - 39,000 true is 30, 33, 35 ,37, or 40?