A bag contains yellow marbles and red marbles,65 in total. The number of yellow marbles is 5 more than 4 times the number of red marbles. How many yellow marbles are there?
Let x equal the number of red marbles. [tex]65 = x + (4x + 5)[/tex] [tex]65 = 5x + 5[/tex] [tex]60 = 5x[/tex] [tex]12 = x[/tex] [tex]65 - 12 = 53[/tex] 53 yellow marbles.