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OpenStudy (anonymous):
Solve this system of equations.... x+ 4y +14z =4 5x+ 21y+ 74z=20 3x+ 9y+ 30z=12
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OpenStudy (anonymous):
Solve for a single variable, plug it into another and then when you eliminate, put it in the last one to get an official answer and then you can plug it into the other ones to get the rest.
OpenStudy (anonymous):
How exactly would I solve the for x in the first equation.... What do I do with the other variables?
OpenStudy (anonymous):
minus the 4y and 14z from each side, then replace it in either of the other 2 equations.
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