raselabby raselabby
  • 21-01-2021
  • Mathematics
contestada

-6x-3y=-30
-9x-y=-24
Solve by elimination

Respuesta :

kiradance702 kiradance702
  • 21-01-2021

Answer:

x=2. y=6

Step-by-step explanation:

Step (1)

-6x-3y=-30

-3(-9x-y=-24)

Step (2)

-6x-3y=-30

27x+3y=72

Step (3)

-6x+27x=21x

-30+72=42

Step (4)

21x=42

divide 21 on each side

x=2

Plug x in one of the two equations

to get the y

-6(2)-3y=-30

-12-3y=-30

+12. +12

-3y=-18

divide negative 3

y=6

Answer Link

Otras preguntas

Please help thank chu all
Which statement BEST describes a lifestyle with healthy eating habits? A. John and his family follow a diet plan that consists of healthy foods. if they begin
I need help on this ! Asap
Who can help me with these .
Mr.Fraser asked four students in his class to find the greatest common factor of 24 and 36. Donte answered 2,Annika answered 3,Noelia answered 6,and Scott answe
(8-9)-(9+3)*5 5+(5+5+6)+9 (5/3-3) 2*3+(4*2)/2
9 × 3=(5 × 3) + ( ? × 3)
Please help thank you
what is answer to this equation 2/5=m/7? what does m =
Mike spent $7920 on his vacation, which was 11% of his monthly salary. What was his monthly salary