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Solving for x,y,and z when there are multiple equations?
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Matrices or elimination or substitution
Why not save some headaches and multiply ... 1) The top equation by 4 2) The middle equation by 2 3) The bottom equation by 3
How did you get those numbers?
Considering each equation separately, it seemed prudent to get rid fo the silly fractions and decimals. Least common denominator sort of thing.
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oh, ok thanks
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