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Testing123guest
 one year ago
Which ordered pairs in the form (x, y) are solutions to the equation
7x – 5y = 28?
Choose all answers that are correct.
A.
(−6, −14)
B.
(−1, −7)
C.
(4, 10)
D.
(7, 9)
Testing123guest
 one year ago
Which ordered pairs in the form (x, y) are solutions to the equation 7x – 5y = 28? Choose all answers that are correct. A. (−6, −14) B. (−1, −7) C. (4, 10) D. (7, 9)

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0just substitute each pair into the equation and check if it is correct.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Just plug in each choice into the equation and see if it makes a true statement. If it does, it satisfies the equation.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the left side as to equal 28, put in all the numbers and find which one equals 28

Testing123guest
 one year ago
Best ResponseYou've already chosen the best response.0i cant if i get it wrong the first time that is it for that question

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The B one works: 7(1)  5(7) = 28 7 + 35 = 28 28 = 28

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Here is the worked out problem for choice A. 7x – 5y = 28 A. (6. 14) 7(6)  5(14) = 28 42 + 70 = 28 28 = 28 Since 28 = 28 is true, that means (6, 14) is a solution, so choice A works. Now follow the same procedure for each of the other choices.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0C and D don't work c. 7(4)  5(10)=28 28  50 = 28 22 = 28 This is not true. D. 7(7)  5(9)=28 49  45 = 28 4=28 This is also not true. So only A and B work.
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