kendalfreeman2004 kendalfreeman2004

19-12-2019
Mathematics

contestada

Solve -5 = x - 3y

Solve 11 = -3x + 7y

Respuesta :

Yang100 Yang100

19-12-2019

Answer:

x=1, y=2. (1, 2).

Step-by-step explanation:

x-3y=-5

-3x+7y=11

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

x=3y+(-5)

x=3y-5

-3(3y-5)+7y=11

-9y+15+7y=11

-2y=11-15

-2y=-4

2y=4

y=4/2

y=2

x-3(2)=-5

x-6=-5

x=-5+6

x=1

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