26-02-2016
Mathematics

contestada

Lena tried to solve a system of linear equations algebraically and in the process found the equation 5 9. Lena thought something was wrong, so she graphed the equations and found that were parallel lines. Explain what Lena's graph and equation could mean.

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27-02-2016

5.9÷76+67÷7+-8= -55 Hope this helps I tryed alll of my best

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