vi7sfaloveshani vi7sfaloveshani

14-06-2016
Mathematics

Answered

Without graphing is the system independent, dependent, or inconsistent?

-2x-y=9

3x-4y=-8

Could someone please explain

Verified Answer :

HomertheGenius HomertheGenius

21-06-2016

y = -2 x - 9
3 x - 4(-2 x - 9 ) = -8
3 x + 8 x + 36 = - 8
11 x = - 44, x = - 4
y = 8 - 9 , y = -1
This is a unique solution, the system is independent.

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