pinkslimer1708
pinkslimer1708 pinkslimer1708
  • 16-01-2022
  • Mathematics
contestada

Solve the equation below

Solve the equation below class=

Respuesta :

dt33183 dt33183
  • 16-01-2022

Answer:

(-1,-1)

Step-by-step explanation:

y = 9x + 8 and y = -x - 2

then 9x + 8 = -x - 2

9x + x = -8 - 2

10x = -10

x = -1

y = -x - 2 = - (-1) - 2 = 1 - 2 = -1

Answer Link
Lemonpledgee
Lemonpledgee Lemonpledgee
  • 16-01-2022
Answer is x = -1 and y = -1

When substituting the second equation into the first equation for y we can solve for x

-x - 2 = 9x + 8

-x = 9x + 10

-10x = 10

x = -1

Then we can plug x back into one of our original equations to find y

y = 9(-1) + 8

y = -9 + 8

y = -1
Answer Link

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