Solve the system by the elimination method
6x+2y=-16
-x-3y=-16

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25-08-2017
Mathematics

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Solve the system by the elimination method
6x+2y=-16
-x-3y=-16

Respuesta :

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apologiabiology apologiabiology · Answer 1 · 2017-08-25T02:11:09+02:00

apologiabiology apologiabiology

25-08-2017

eliminate y's
multiply first equation by 3 and 2nd by 2 and addd them

18x+6y=-48
-2x-6y=-32 +
16x+0y=-80

16x=-80
divide both sides by 16
x=-5
sub back

-x-3y=-16
-(-5)-3y=-16
5-3y=-16
-3y=-21
y=7

(x,y)
(-5,7)

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Solve the system by the elimination method 6x+2y=-16 -x-3y=-16

Respuesta :

Otras preguntas

Solve the system by the elimination method
6x+2y=-16
-x-3y=-16