SOLUTION: 5x+4y=16 y=-16

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Question 102842This question is from textbook Algebra 1
: 5x+4y=16
y=-16This question is from textbook Algebra 1

Answer by jim_thompson5910(14938) About Me  (Show Source):
You can put this solution on YOUR website!
Start with the given system

5x%2B4y=16
y=-16



5x%2B4%28-16%29=16 Plug in y=-16


5x-64=16 Multiply


5x=16%2B64Add 64 to both sides


5x=80 Combine like terms on the right side


x=%2880%29%2F%285%29 Divide both sides by 5 to isolate x



x=16 Divide

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Answer:
So our answer is x=16



So our solution is x=16 and y=-16