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

What does softmoric mean
A verb phrase consists of A. the main verb only B. the main verb and any helping verbs C. the main verb, any helping verbs, and any adverbs D. helping verbs onl
Includes everything that exists anywhere in space
What does bondpeople mean as a nineteenth century term
What is the equation of a line passing through (-3, 7) and having a slope of -1/5
There are an infinite number of chords that can be created in a circle. True False
Under Roman law, someone accusing another person of a crime needed belief that the accused was guilty. proof that a crime had been committed. a lawyer willing
What is the creature from the goonies called?
Jodi is finding the sum 4 + (-6.5) on a number line what is the distance from 4 to the sum
how do u slove systems by elemination -12x+6y=18 6x-7y=-5