jennajarrell jennajarrell

08-05-2017
Mathematics

contestada

how do i use systems of equations to eliminate two problems that are: -9x+2y=-24 and -x+2y=8

Respuesta :

apologiabiology apologiabiology

08-05-2017

eliinate y's
multiply top eqatyion by -1 and add to 2nd

9x-2y=24
-x+2y=8 +
8x+0y=32

8x=32
divid both sides b y8
x=4

sub back

-x+2y=8
-4+2y=8
add 4 to both sides
2y=12
divide both sides by 2
y=6
(x,y)
(4,6)

Answer Link

Otras preguntas

Help Me with these 2 questions and you will get points

EXTRA POINTS FOR HELP !

Hans Eysenck claimed all of the following except ___________. A. personality is influenced by one's genetic predisposition B. personality is influenced by condi

[tex]Maria earns $603.75 for 35 hours of work. What is her rate of pay per hour?[/tex] I legit forgot how to divide for some reason Can someone drop down the wo

A new car is purchased for 16000 dollars. The value of the car depreciates at 6.25% per year. To the nearest tenth of a year, how long will it be until the valu

what happens to the width of a light band after a muscle contracts

Help with this ASAP it’s due today

Please I need a sequel to the pomegranate seed

Why is the man walking along the Yukon River?

which of these does NOT represent a polynomial when simplified??