caseyp9824 caseyp9824
  • 21-03-2019
  • Mathematics
contestada

What is the solution to this system of linear equations? 7x – 2y = –6 8x y = 3 (–6, 3) (0, 3) (1, –5) (15, –1)

Respuesta :

calculista
calculista calculista
  • 31-03-2019

Answer:

[tex](0,3)[/tex]

Step-by-step explanation:

we have

[tex]7x-2y=-6[/tex] ----> equation A

[tex]8x+y=3[/tex] ----> equation B

Multiply the equation B by 2 both sides

[tex]2(8x+y)=2*3[/tex]

[tex]16x+2y=6[/tex] ------> equation C

Adds equation A and equation C

[tex]7x-2y=-6\\16x+2y=6\\--------\\7x+16x=-6+6\\23x=0\\x=0[/tex]

Find the value of y

[tex]7(0)-2y=-6[/tex]

[tex]-2y=-6[/tex]

[tex]y=3[/tex]

the solution is the point [tex](0,3)[/tex]

Answer Link
Delgado007
Delgado007 Delgado007
  • 18-05-2020

Answer: B

Step-by-step explanation:

Answer Link

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