# Abag contains green marbles and blue marbles, 16 in total. The number of green marbles is 8 less than 2 times the number of blue marbles, How many green marbles are there?

##### 1 Answer

Dec 10, 2016

Assign a variable for the number of blue marbles.

#### Explanation:

In this case, let's use y.

To find the number of green marbles, assign an expression following information from the question, which gives you;

Here, the expression

There are 8 blue and 8 green marbles.

Substitute 8 for y to find the green marbles;