It costs $100 to join a fitness center, plus a monthly fee. You spent $700 last year at the fitness center. How much was the monthly fee? Write and solve an algebraic equation to determine the monthly fee.
monthly fee is 50. so we started with 700 a year but since it cost 100 to join we minus it from 700 so it will be 600. and since there are 12 months in a year we divide 600 by 12 and that equals 50.
