sierralinares sierralinares
  • 23-09-2017
  • Mathematics
contestada

What is the solution to the system of equations here?

{x - y = 7
{2x + y = -1

How did you solve this?

Respuesta :

dpokharnaotzjgn
dpokharnaotzjgn dpokharnaotzjgn
  • 24-09-2017
To get this, you have to use elimination which is to basically get rid of one of the variables:

Add the two equations to get :

3x=6
x=2

Then, plug in 2 for x to get y:

2-y=7
y=-5

Answer Link

Otras preguntas

5x^2+19x+12 factor the polynomial
Evaluate the 6 trigonometric functions of theta for 540 degrees
How do I prove that 0.3333.. Is equal to 1/3 using a geometric series?
What is the basic building block of all things
What is the basic building block of all things
What shape has only 1 pair of parallel line
What is a summary number model :) by the way here is the question joe ordered 72 plants for his patio garden. Each pot holds 4 plants.how many pots are needed t
What was the role of the proprietors in the middle colonies
What was Jefferson’s official position regarding the Napoleonic Wars?
what is the likely mechanism of inheritance for a character with a large range of phenotypes?