SOLUTION: Determine whether (4,-4) is a solution of 2x+9y=16

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Question 291128: Determine whether (4,-4) is a solution of 2x+9y=16
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
2x%2B9y=16 Start with the given equation.


2%284%29%2B9%28-4%29=16 Plug in x=4 and y=-4


8-36=16 Multiply


-28=16 Subtract


Since the equation above is NOT true, this means that the values x=4 and y=-4 do NOT satisfy the original equation. So (4,-4) is NOT a solution of 2x%2B9y=16.