yes, hi. I've seen another source, use set variables to 0 and then solve individually, answers are usually,  x = (29/3)t y = 0 z = 29/5 - (29/5)t

Algebra: Structure And Method, Book 1
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Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
Section4.8: Rate-time-distance Problems
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yes, hi. I've seen another source, use set variables to 0 and then solve individually, answers are usually, 

x = (29/3)t y = 0 z = 29/5 - (29/5)t

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