How do you solve the system of equations #-2x+4y=7# and ##?
1 Answer
Nov 5, 2017
Suppose the second equation was :
then
Explanation:
The only way to clear this question (after a year with no correction) seems to be to add the missing component. The additional equation
[1]
[2]
Multiplying [1] by
[3]
Adding [2] and [3]
[4]
Dividing both sides of [4] by
[5]
Substituting
[6]
[7]
[8]