Bomarie02
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 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

How did Prithvi Narayan Shah conquer the three Kingdoms of Kathmanduvalley?​
Given negative two and one third times negative five and fifteen hundredths, determine the product. twelve and 1 over 60 ten and one over 10 ten and 1 over 2
The moon can always be seen from every part of the earth. This is a(n) ____________statement.
help pls i hslsjdnkxkdjdjdj
Postmodern literature is a form of literature that has characteristics and certain markers such as fragmentation, paradox, unreliable narrators, sometimes impos
The change in investments in SRIs shows which of the following
In Biomedical engineering signals and systems, how is the fourier coefficient and the fourier transform expression written​
Look at photo (10 points)
Given negative 7.3 divided by one half, find the quotient. −14.6 1.825 −3.65 14.6
Carl used 24 blocks to build a tower. Each block is a cube with side length of 2 inches. Use the formula v = s3 to find the volume of a cube. What is the volume