How do solve the following linear system?: # y=-6x-9 , -x+3y=-5 #?

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How do solve the following linear system?: # y=-6x-9 , -x+3y=-5 #?

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Answer 1 · 2018-06-19T15:28:07

Use substitution method

Explanation:

Given linear equations:
#y=-6x-9 \ldots(1)# &
#-x+3y=-5\ldots (2)#
substituting the value of #y# from (1) into (2), we get
#-x+3(-6x-9)=-5#
#-19x=22#
#\implies x=-\frac{22}{19}#
#y=-6x-9=-6(-\frac{22}{19})-9=-\frac{39}{19}#

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How do solve the following linear system?: # y=-6x-9 , -x+3y=-5 #?

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Explanation:

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