ThatSmartGilaMonster ThatSmartGilaMonster

12-12-2021
Mathematics

contestada

Solve the system of equations 4x – 5y = –6 and -6x + 7y = 12 by
combining the equations.

Respuesta :

Yang100 Yang100

12-12-2021

Answer:

x=-9, y=-6. (-9, -6).

Step-by-step explanation:

4x-5y=-6

-6x+7y=12

----------------

6(4x-5y)=6(-6)

4(-6x+7y)=4(12)

-----------------------

24x-30y=-36

-24x+28y=48

-----------------------

-2y=12

y=12/-2

y=-6

4x-5(-6)=-6

4x+30=-6

4x=-6-30

4x=-36

x=-36/4

x=-9

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