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Mathematics 8 Online
OpenStudy (blazereh):

How to get the first equation? WILL GIVE MEDAL ^.^

OpenStudy (blazereh):

The problem:

OpenStudy (blazereh):

@perl

OpenStudy (perl):

because it is a parallelogram , AB = DC

OpenStudy (perl):

length AB = length DC

OpenStudy (blazereh):

@perl so 5x - 2y = 4? I don't see how I would solve that

OpenStudy (perl):

AB = DC implies 5x - 2y = 4 AD = BC implies y = 5 - x

OpenStudy (perl):

we get a system of equations

OpenStudy (blazereh):

@perl Ah, I didn't think of that. Thank you so much c:

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