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

Help me please ......​
make a Short report by quoting some practical example of road accident ​
3. What do these factors have in common, in relation to sexual abuse: being a child, having dementie, being under the influence of drugs or alcohol, and having
Why did the setting of Plymouth in 1620 pose significant problems for the Pilgrims?
Part A How do fatty acids travel through a cell membrane? O diffusion O carrier proteins O active transport O endocytosis
"Poverty is the causes of population increase" Elaborate it​
what may the problem of main in the stone age​
Please help! I will mark as brainliest IF answer is right. <3
A. what art elements were used in your hand-draw or digitally made logo ​
Can someone please please help me?? I will give you BRAINIEST