dezariaspencer
dezariaspencer dezariaspencer
  • 02-05-2018
  • Mathematics
contestada

Solve the system using the substituiton method
5x-2y=-20
6x+y=-7

Respuesta :

nilbert
nilbert nilbert
  • 02-05-2018
Hi there!

To solve this, we need to find the value of one variable and substitute it into the equation to find the other:

6x + y = -7
y = -7 - 6x

5x - 2y = -20
5x - 2(-7 - 6x) = -20
5x + 14 + 12x = -20
17x = -34
x = -2

Now that we know the value of x, we can plug it in again to find the value of y:

x = -2
6x + y = -7
6(-2) + y = -7
-12 + y = -7
y = 5

So, the answer is x = -2 and y = 5.

Hope this helps!
Answer Link

Otras preguntas

When the temperature of an ideal gas is increased, the pressure also ________
How are positive and negative ions formed
Calculate final temperature of 50 g of water heated with 20000 J. The heat capacity of water is 4190 J /kg/ ºC.
A special variety of wallpaper covers only 60 square feet per roll. How many single rolls are needed to paper a room measuring 19' by 12' by 8'6"? Show all wo
Fluids at rest possess no flow energy. a)-True b)-False
Completion time (from start to finish) of a building remodeling project is normally distributed with a mean of 200 work-days and a standard deviation of 10 work
factor: d2 + 16dm + 64m2
If the graph of two linear equations cross at exactly one point they are called independent. TRUE FALSE
What precautions should you take to prevent injuries when dealing with heavy loads?
As a result of the Crimean War, Russia won exclusive trading rights with Crimea. decided to end its involvement in the Middle East. formed a powerful alliance w