juanmanuelgaleana juanmanuelgaleana
  • 17-07-2017
  • Mathematics
contestada

Find a solution to the following system of equations -3x+3y=-9 -3x+y=7

Respuesta :

irspow
irspow irspow
  • 17-07-2017
(-3x+3y=-9)-(-3x+y=7)

-3x+3x+3y-y=-9-7

2y=-16

y=-8, making -3x+3y=-9 become:

-3x+3(-8)=-9

-3x-24=-9

-3x=15

x=-5

So the solution to this system of equations is the point (-5, -8)
Answer Link

Otras preguntas

what is the consonance in the seven ages of a man?
could you tell me what Is a Shiksa?
In a parallel circuit with 3 resistors, the output voltage at the power supply is recorded to be 5 A.   The current flowing through the first resistor is 1 A an
What is the relationship between the size of the planet and its distance from the sun ?
What does biodiversity mean
if a storm windows has an area of 315 square inches, what are the dimensions if the window is 6 inches higher than it is wide (w x h)
what does 'don't hold your breath' mean?
The length of a swimming pool is 8m longer than its width and the area is 1o5m2?
Subtract a^2 - 7a + 11 from the sum of 3a^2 - 4 and 5a^2 + 6a
Write the ratio in lowest terms.  20:14a. (7/10)b. (20/14)c. (14/20)d. (10/7)