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

how can (square root of 25) ^2 be rewritten?
HELP PLEASE!!! What is the volume of this container?
Solve the equation. 2x - 8(x+1)= 6(2x - 3)
If I make a solution by adding 83grams of sodium hydroxide to 750mL I’d water what is the molarity of sodium hydroxide
I Need Assistance With These
Read this excerpt from the exposition in "The Monkey's Paw." Father and son were at chess, the former, who possessed ideas about the game involving radical chan
Can you please correct this paragraph? A football player once had a dream. The dream was about the Queen of England. She was on a boat and was fishing. When sh
12(3-x)=48 plllllzzzz
Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.
Why is excretion necessary to maintain homeostasis?