How do solve the following linear system?: # 2x - 4y=9, 2x - 5y=3 #?

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How do solve the following linear system?: # 2x - 4y=9, 2x - 5y=3 #?

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Answer 1 · 2015-12-27T23:58:55

I found:
#x=33/2#
#y=6#

Explanation:

I would isolate #2x# from the first equation:
#2x=9+4y#
and substitute into the second:
#9+4y-5y=3#
rearranging:
#y=6#
back into the first equation:
#2x=9+24#
#x=33/2#

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How do solve the following linear system?: # 2x - 4y=9, 2x - 5y=3 #?

1 Answer

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