lakergroup lakergroup
  • 06-07-2020
  • Mathematics
contestada

Use addition to solve the linear system of equations. Include all of your work in your final answer. -x-y=4 x+2y=4

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 06-07-2020

Answer:

x=-12, y = 4

Step-by-step explanation:

-x-y=4

x+2y=4

Add the equations together to eliminate x

-x-y=4

x+2y=4

----------------

0x + y = 8

y = 8

Now find x

x + 2y = 4

x +2(8) = 4

x +16 = 4

x = 4-16

x = -12

Answer Link

Otras preguntas

Mr.jacobs budgeted $1,200 for tiles. His sketch of the floor requires him to use 38 white tile. each white tile cost $12. Write and solve an inequality to find
Factor the expression. 6c^2-5c+1 A. (3c-1)(2c-1) B. (6c+1)(c-1) C. (5c+1)(c+1) D. (3c+1)(3c+1)
Write to two word for thr suffixes able and ible
In Kabir’s poetry, the swan is a symbol of _____. beauty earthly pleasure mortality transformation
i need help getting my answer
abc+dbe = 812 ABCDE are all even numbersA=B=C=D=E=
What was the United States early reaction to world war2
what does subsidized means?
One half of the total cost
The sweeping second hand on your wall clock is 24cm long. a)What is the rotational speed of the second hand? b)Find the translational speed of the tip of the s