How do solve the following linear system?: #-9x + 5y = 16 , -7x + y = -19 #?

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How do solve the following linear system?: #-9x + 5y = 16 , -7x + y = -19 #?

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Answer 1 · 2016-03-14T17:57:49

Use method of simultaneous equations to get
#x=111/26 and y=283/26#.

Explanation:

In the second equation,
#y=7x-19#.
Now substitute this fact into the first equation to get
#-9x+5(7x-19)=16#
#therefore -9x+35x=16+95#
#therefore x=111/26#.

Now substitute this back to find #y=7(111/26)-19=283/26#.

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How do solve the following linear system?: #-9x + 5y = 16 , -7x + y = -19 #?

1 Answer

Explanation:

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