Posted by Zakariya on Saturday, February 1, 2014 at 5:34am.
Solve x3t=6 and 4x+3t=9

Mathematics  Steve, Saturday, February 1, 2014 at 6:24am
well, we know that x = 3t+6, so use it:
4(3t+6)+3t = 9
12t+24+3t = 9
15t = 15
t = 1
so, x = 3t+6 = 3
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