cIaire cIaire
  • 23-03-2021
  • Mathematics
contestada



Solve the system of equations - X - Y = 3 and 6x + 2y = -30 by
combining the equations

Respuesta :

christinanyc christinanyc
  • 23-03-2021

Answer:

X= -6, Y= 3

Step-by-step explanation:

1)

- X - Y = 3

- X - 3= Y

Y= - X - 3

2)

6X + 2Y = -30

3X + Y = -15

Y = -15 - 3X

3) Combine

- X- 3 = - 15 - 3X

- X = -15 - 3X +3

-X + 3X = - 12

2X = - 12

X= - 6

4)

- X-Y=3

-(-6) - Y = 3

-Y= 3-6

-Y= - 3

Y = 3

Answer: X= -6, Y= 3

{

6x + 2y = -30, 6(-6)+2(3)= -30

}

Answer Link

Otras preguntas

The model shows the expression 20+16. Which expression is equivalent to this sum?
Write an exponential function in the form y = ab" that goes through points (0,6) and (2,384).
Solve using the Quadratic Formula. 3x2 + 2x + 1 = 0
What is the difference between a wave and a medium?
What is the 14th Cabinet position Don’t copy of internet
How do stem cells know what type of cell to differentiate into?
My friend has 200 subs and i have only 36 can you help me its ACYT ZR A. yea ill help B. Naw im good
Liz's Bakery recently spent a total of $200 on new equipment, and their average hourly operating costs are $10. Their average hourly receipts are $18. The baker
BRAINLIEST Enlargement or Reduction? (Leave an explanation)
Bob makes 7% commission on all of the snacks he sells at his snack stand. If he needs to make $3500 a month to pay his bills, how much does he need to sell in s