mai6r2aDlugarche mai6r2aDlugarche

07-06-2016
Mathematics

contestada

What is the solution to the system of equations?

y = –3x – 2

5x + 2y = 15

(–40, 19)
(–19, 55)
(19, –40)
(55, –19)

Respuesta :

eproctor02 eproctor02

07-06-2016

(-19,55) x is equal to -19 and y is equal to 55

Answer Link

Ckaranja Ckaranja

10-06-2016

(–19, 55)
Replacing y in the second equation gives;
5x+2(-3x-2)=15
5x-6x-4=15
-x-4=15
-x=19
x=-19

y=-3(-19)-2
y=57-2
y=55

(-19, 55)

Answer Link

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