How do solve the following linear system?: $x-7y=4 , -2x+5y=-3$ ?

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How do solve the following linear system?: $x-7y=4 , -2x+5y=-3$ ?

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Answer 1 · 2018-06-05T11:38:37

$x=1/9,y=-5/9$

Explanation:

Multiplying the first equation by $2$ and adding to the second:
$-9y=5$
so $y=-5/9$
Plugging this in the first equation
$x-7(-5/9)=4$
$x=4-35/9=(36-35)/9$
so $x=1/9$

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How do solve the following linear system?: $x-7y=4 , -2x+5y=-3$ ?

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How do solve the following linear system?: x-7y=4 , -2x+5y=-3 x-7y=4 , -2x+5y=-3 ?

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How do solve the following linear system?: $x-7y=4 , -2x+5y=-3$ ?