Help with this 3 system equation word problem?

Help with this 3 system equation word problem?

Postby monnysmith » Fri Nov 26, 2010 8:08 am


The number of blues was four less than the sum of whites and the greens. Also, the number of greens equaled the sum of the blues and the whites.
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Postby Math Tutor » Sun Nov 28, 2010 9:21 am

blue = white + green - 4
green = blue + white


so
blue = white + (blue + white) - 4
blue - blue + 4 = 2*white
white=2

but we cannot find green and blue

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Postby Math Tutor » Sun Nov 28, 2010 9:23 am

In the given problem we have a system of 2 equations and 3 unknown variables.

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