jenkinsj39 jenkinsj39

26-02-2021
Mathematics

contestada

3y + 7 = 5x 7x - 3y = 1

Respuesta :

Yang100 Yang100

26-02-2021

Answer:

x=-3, y=-22/3. (-3, -22/3).

Step-by-step explanation:

3y+7=5x

7x-3y=1

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

5x-3y=7

7x-3y=1

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

-5x+3y=-7

7x-3y=1

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

2x=-6

x=-6/2=-3

7(-3)-3y=1

-21-3y=1

3y=-21-1

3y=-22

y=-22/3

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