sam64534 sam64534
  • 23-04-2022
  • Mathematics
contestada

Solve using elimination. 3х + 8y = -2 and -3х – бу = -6​

Respuesta :

amelieoconnor amelieoconnor
  • 23-04-2022

Answer:

  • x=10
  • y= -4

Step-by-step explanation:

  • Simultaneous equations
  • 3х + 8y = -2
  • -3х – 6у = -6​
  • (3)3х + 8y = -2
  • 9x + 24y = - 6
  • (4)-3х – 6у = -6​
  • -12x-24y=-24
  • 9x = - 6
  • -12x= -24
  • -3x=-30
  • 3x=30
  • x=30/3
  • x=10
  • Put x back into equation
  • 3х + 8y = -2
  • 3(10) + 8y = -2
  • 30 + 8y = -2
  • 8y= -2-30
  • 8y= -32
  • y= -32/8
  • y= -4
  • Verify solutions
  • -3х – 6у = -6​
  • -3(10) - 6(-4)= - 6
  • -6=-6
Answer Link

Otras preguntas

Can someone provide a justification?
in a bag of mixed walnuts and cashews, the ratio of number of wainuts to number of cashews is 5:6. There are 120 cashews in the bag, Dominique thinks that ther
"We have to disentangle the aspects of the [1979] revolution, rather than simply relying on the images that defined it for us." What do you think John Green is
Testing of competitors product is considered?
several carper installers make measurements for carpet installation in the different rooms of a restaurant, reporting their measurements with inconsistent accur
Find the next term of the following sequence. 9, 6, 4,
Part 3: As a student, you have a lot of responsibilities, which generate a certain amount of stress as you balance the responsibilities of your school, family,
Right to bear arms Explanation/impact
-6 -4 -2 6 4 2 2 4 6 f(1) =
Explain how you know the measure of angle ABC Sentence Frame Angle ABC = angle ABC is because... degrees, degrees E A B 40° D C