fisherjake510 fisherjake510
  • 01-08-2017
  • Mathematics
contestada

Solve the system using elimination. x + 2y = –6 3x + 8y = –20

Respuesta :

texaschic101
texaschic101 texaschic101
  • 01-08-2017
x + 2y = -6....multiply by -3
3x + 8y = -20
---------------
-3x - 6y = 18 (result of multiplying by -3)
3x + 8y = -20
--------------add
2y = -2
y = -2/2
y = -1 <===

x + 2y = -6
x + 2(-1) = -6
x - 2 = -6
x = -6 + 2
x = -4 <==

solution is (-4,-1)
Answer Link

Otras preguntas

Light waves are transmitted across the ________ and enter the eye through the ________.
Question is attached below Answer choices are as followed: x y -3 1 1 3 3 4 5 5 x y -4 1 -3 2 0 3 2 4 x y -2 -3 -1 1 0 2 1 4 x y -4 -4 -2 -2 1 1 3 3
By 1850, most Native Americans were living in West Texas because A. the buffalo had been
Which of the following can have both harmful short-term effects and harmful long-term effects? A. Over-the-counter drugs B. Prescription drugs C. Illegal drugs
Based on her recipe, Elena knows that 5 servings of granola have 1,750 calories. 1 if she eats 2 servings of granola, how many calories does she eat
1. In "The Ransom of Red Chief," why is Mr. Dorset's letter a surprise to Bill and Sam? 2. Describe the old man's eye from "The Tell-Tale Heart." Use one detail
What is the surface area of this triangle ?
Which regions did Kush link through trade? I AM GIVING OUT BRAINLIST
Which of the following was an early obstacle to industrialization in South America? A lack of petroleum. A lack of electricity. A lack of coal. A lac
The right of freedom of assembly and petition allows people to do what?