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

how to figure how many hundreds there are in 150,000

Algebra homework help, solving inequalities. A. Solve the inequalities and show your work. 5x + 3 ≤ 18 and 4 - x < 6

3(2y+8)=60 solve for y

What is the product of 8 and 54

why is it important to elevate the anthers

A salesman traveled 736 miles on 32 gallons of gas. How far can be traveled on 128 gallons of gas?

in light of amendment VI, a 1963 supreme court decision in Gideon v. Wainwright specified?

Tell me how 1/6 is greater then 1/8 but less then 1/3

Analyze what happens to the air pressure as you increase in the altitude. How might this affect athletes who compete at higher altitudes?

Which description of an industrial revolution is correct? A. a trade system that allows businesses to sell goods in more than one country B. a gradual change in