SOLUTION: solve the system by using the elimination-by-addition method 9x-6y=48 10x+5y=30

Question 645552: solve the system by using the elimination-by-addition method
9x-6y=48
10x+5y=30
Answer by Edwin McCravy(20054) (Show Source): You can put this solution on YOUR website!



The first equation can be divided through by 3.
The second equation can be divided through by 5.



To make the y's calcel, multiply the second equation through by +2:



Add corresponding terms:

7x = 28
 x = 4

Substitute in 2x + y = 6

2(4) + y = 6
   8 + y = 6
       y = -2

Edwin

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