Question

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?

Answer 1

Let x equal the number of red marbles.
$65 = x + (4x + 5)$
$65 = 5x + 5$
$60 = 5x$
$12 = x$
$65 - 12 = 53$
53 yellow marbles.