SOLUTION: If (3,n) is a solution of Ax + 3y= 6 and (n,5) is a solution of 5x + y= 20, what is the value of A **linear equations**

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Question 999411: If (3,n) is a solution of Ax + 3y= 6 and (n,5) is a solution of 5x + y= 20, what is the value of A **linear equations**
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
Substitute with given values,



.
.
.




So then,
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