taitumwilliams243 taitumwilliams243

17-02-2020
Mathematics

contestada

Solve the following system of equations by using the method of your choice
3x-y=-28
-5x-4y=-10

Respuesta :

miljanamilovanovic12 miljanamilovanovic12

17-02-2020

Answer:

(x, y) =(-6,4)

Step-by-step explanation:

3x-y=-28

-5x-4y=-10

y=3x+28

-5x-4(3x+28)=-10

y=3x+28

-5x-12x-112=-10

y=3x+28

-17x=-10+112

y=3x+28

-17x=102

y=3x+28

x=102/(-17)

y=3x+28

x=-6

y=3*(-6)+28

x=-6

y=-24+28

x=-6

y=4

x=-6

(x,y)=(-6,4)

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