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18-01-2022
Mathematics

contestada

How many solutions does the system of equations have? Explain. 2x - 9y = -5 4х - бу = 2

Respuesta :

Yang100 Yang100

18-01-2022

Answer:

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

Step-by-step explanation:

2x-9y=-5

4x-6y=2

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

-2(2x-9y)=-2(-5)

4x-6y=2

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

-4x+18y=10

4x-6y=2

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

12y=12

y=12/12

y=1

2x-9(1)=-5

2x-9=-5

2x=-5+9

2x=4

x=4/2

x=2

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