Match each equation to its solution. 3x + 7 = 28 x = -5 2x + 3 = -7 x = 6 4.5x - 7 = 20 x = -7

Jiovanni is looking in to two different companies that offer study guides for math exams.test prep 101 charges a $5 flat fee and an additional $0.25 per problem.math charges a $2 flat fee and an additional $0.50 per problem.how many prablems would make the costs of the two companies be equal? varibles: equations/eniqualities{ {