SOLUTION: Find values for m and b in the following system so that the solution to the system is (-3, 4). 5x + 7y = b mx + y = 22

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Question 63062This question is from textbook
: Find values for m and b in the following system so that the solution to the system is (-3, 4).
5x + 7y = b
mx + y = 22
 This question is from textbook

Answer by praseenakos@yahoo.com(507) About Me  (Show Source):
You can put this solution on YOUR website!
QUESTION:

Find values for m and b in the following system so that the solution to the system is (-3, 4).
5x + 7y = b
mx + y = 22
ANSWER:


Input the values x = -3 and y = 4 in the given equations.


==>5*-3 + 7*4 = b

m*-3 + 4 = 22


==> -15 + 28 = b ------------(1)


-3m + 4 = 22 -------------(2)


(1) ==> -15 + 28 = b


==> 13 = b


(2) ==> -3m = 22 -4

==> -3m = 18

Divide both sides by -3


==> -3m/-3 = 18/-3

==> m = -6


So the values are m = -6 and b = 13


Hope you understood.


Regards.
praseenakos@yahoo.co.in