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write and solve an equation to determine how many blue marbles drew has.

drew has 50 red, green, and blue marbles. he has six more red marbles than blue marbles and four fewer green marbles than blue.
asked Oct 3, 2012 in Algebra 1 Answers by anonymous




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1 Answer

Let the blue marbles be x

Red marbles = 6 + x

Green marbles = x - 4

According to the statement

x + (6 + x) + (x - 4) = 50

x + x + x + 6 - 4 = 50

3x + 2 = 50

3x = 50 - 2

3x = 48

x = 48/3

x = 16

So, the no. of blue marbles = 16
answered Oct 3, 2012 by anonymous

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