Mathematics
Mathematics, 10.01.2020 05:31, leahphi

(25 points and brainliest) given the system of equations presented here:

4x + y = 4
2x + 7y = 28

which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated?

a. multiply the second equation by −1 to get −2x − 7y = −28
b. multiply the second equation by −4 to get −8x − 28y = −112
c. multiply the first equation by −7 to get −28x − 7y = −28
d. multiply the first equation by −2 to get −8x − 2y = −8

answer
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 20:30, Lilshawn1
Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?
Answers: 1
image
Mathematics, 21.06.2019 21:00, ShahinF7536
Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]
Answers: 1
image
Mathematics, 21.06.2019 21:30, brittanysanders
Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.
Answers: 2
image
Mathematics, 21.06.2019 21:30, daii128
The anwser cause i do not understand just plez
Answers: 1
Do you know the correct answer?
(25 points and brainliest) given the system of equations presented here:

4x + y = 4

Questions in other subjects:

Konu
English, 10.12.2020 03:40
Konu
Spanish, 10.12.2020 03:40