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Mathematics 13 Online
OpenStudy (anonymous):

Solving for x,y,and z when there are multiple equations?

OpenStudy (shamil98):

Matrices or elimination or substitution

OpenStudy (anonymous):

OpenStudy (tkhunny):

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

OpenStudy (anonymous):

How did you get those numbers?

OpenStudy (tkhunny):

Considering each equation separately, it seemed prudent to get rid fo the silly fractions and decimals. Least common denominator sort of thing.

OpenStudy (anonymous):

oh, ok thanks

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