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

What is a theocracy
Read the passage below and answer the question. Jake was incredibly loquacious. He once gave a twenty minute monologue about his favorite movie. In the passage
given the numbers 6, 8, 10, and 20, what number when added would make the average of all five numbers 12? 1. (4) 2. (10) 3. (16) 4. (22) 5. (28)
Archaebacteria use _____ for movement. celia flagella pili cell walls
israeli palestine religion​
Which of the symbols correctly relates the two numbers ?
What was the underlying cause of the Cold War?
Several bird species feed in a certain species of tree. Each bird species feeds in a different part of the tree. Which statement is true of these bird species?
What steps best help a reader determine the central idea of a text? Select three options.
the segments shown below could form a triangle