i1nizam1i
i1nizam1i i1nizam1i
  • 03-12-2020
  • Mathematics
contestada

can you tell me how to solve this problem using substitution step by step?

y = -2x - 9 and 6x - 5y = - 19

Respuesta :

Аноним Аноним
  • 03-12-2020

Answer:

x = -4

Step-by-step explanation:

The first equation tells us what y is equal to. We then substitute wherever there is a y with what y equals.

y = -2x - 9

6x - 5y = -19

6x - 5(-2x-9) = -19

6x + 10x + 45 = -19

16x + 45 = -19

16x = -64

x = -4

Answer Link

Otras preguntas

how could an error during transcrition affect the protein that is produced
The students in art class are designing a stained-glass window to hang in the school entryway. The window will be 3 feet tall and 4 feet wide. Here is their des
Most people in Brazil live __________.
Which landscape will erode more quickly? Assume the same precipitation and average temperature in each landscape. A. Landscape A. B. Landscape B. C. The r
What is the mean of the numbers?
Calculate the 4th angle of a quadrilateral if the other sides are 56, 115 and 120.
Find two numbers a and b whose sum a+b is −3, and whose difference a−b is −7.Your answer is
2- Explain the economic meaning of the following cartoon.
which of the binomials below is a factor of this trinomial? x^2+6x-40
Choose all that are correct about the Reconstruction Act of 1867 also known as Radical Reconstruction. A. It divided the south into 5 military districts B. It r