Bomarie02 Bomarie02

02-03-2018
Mathematics

contestada

solve the following system of equations: -2x+y=1
-4x+y=-1
A)(3,1)
B)(-1,3)
C)(-1,-3)
D)(1,3)

Respuesta :

sqdancefan sqdancefan

04-03-2018

You can subtract the second equation from the first:
.. (-2x +y) -(-4x +y) = (1) -(-1)
.. 2x = 2 . . . . . . . . . . . . . . . . . . . simplify
.. x = 1 . . . . . . . . . . . . . . . . . . . . . divide by 2

This corresponds to selection D) (1, 3).

Ver imagen sqdancefan

Answer Link

Otras preguntas

Compute the odds in favor of rolling a sum of 10 in a single roll of two fair dice

The Commissariat established by Frederick William in Prussia became A. the overseer of the army. B. an agency of civil government. C. both a military and civil

A graph depicts force versus position. What represents the work done by the force over the given displacement? A. The work done is equal to the product of the m

If f(x) is 4x-3 what is (f^-1of) (10)

The Habsburg Empire did all of the following EXCEPT A. take control of Hungary, Croatia, and Slovonia. B. lose their Holy Roman Empire in Germany. C. remain a c

can u tell me how to solve this promblem 4/7 plus 3/7

I just need the equation on how to do it. I'm so lost :'( help please!!!!!!

An object with mass 60 kg moved in outer space. When it was at location < 13, -19, -3 > its speed was 3.5 m/s. A single constant force < 220, 320, -120

A graph depicts force versus position. What represents the work done by the force over the given displacement? A. The work done is equal to the product of the m

List all integers between -0.6 and 4.17 THANK U