Solve the following systems of linear equations. [3x+7y= -4 and 2x+5y= -3]

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asked Oct 22, 2017 81.5k views

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Solve the following systems of linear equations. [3x+7y= -4 and 2x+5y= -3]

Mathematics
high-school

Hing asked

by Hing

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2 Answers

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Answer: it's actually (4/17, -8/17)

Yiabiten answered Oct 23, 2017

by Yiabiten

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3 votes

eliminate
multiply first equatin by -2
mulitply second by 3 and add them

-6x-14y=8
6x+15y=-6
add them
y=2
sub

3x+7(2)=-4
3x+14=-4
minus 14
3x=-18
divide 3
x=-6
(-6,2)

BitExodus answered Oct 27, 2017

by BitExodus

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