SOLUTION: solve using substitution method 3x+7y=0 x=11-6y Find soultions.

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Question 201022: solve using substitution method
3x+7y=0
x=11-6y
Find soultions.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
3x%2B7y=0 Start with the given equation.


3%2811-6y%29%2B7y=0 Plug in x=11-6y


33-18y%2B7y=0 Distribute.


-11y%2B33=0 Combine like terms on the left side.


-11y=0-33 Subtract 33 from both sides.


-11y=-33 Combine like terms on the right side.


y=%28-33%29%2F%28-11%29 Divide both sides by -11 to isolate y.


y=3 Reduce.


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x=11-6y Go back to the second equation


x=11-6%283%29 Plug in y=3


x=11-18 Multiply


x=-7 Subtract


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Answer:


So the solutions are x=-7 and y=3 which form the ordered pair (-7,3)