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

What is the relation between "Salto de Tequendama"and the Muisca Culture?
How did Nelson Mandela influence democratic reforms in South Africa? (5 points) He restricted political rights to the white minority. He led the African Nat
Help me please. I have 2 attachments so you can see the graphs.
In Southeast Asia, the predominant religion was _____
What forms the structure called a coral reef
Who constructed the Great Wall? What difficulties did they face?
what accounts for the republican resurgence in these years?
which part of the membrane would help a large carbohydrate molecule inter the cell
A student factored 6 x^9y^2 +2xy as 2xy(3x^8y) What went wrong? Factor correctly.
48/100 in simple form