SOLUTION: 3x-9y=10 15x-45y=20 i took 5 times the first equation which gives me 15x+45y=50 is that correct?

Question 45842: 3x-9y=10
15x-45y=20
i took 5 times the first equation
which gives me 15x+45y=50
is that correct?
Answer by longjonsilver(2297) (Show Source): You can put this solution on YOUR website!
OK, i am going to be hard on you here. There is no point doing maths if you are careless. People lose their marks on carelessness.

You had -9y multiplied by 5. Answer is -45y.

Now use this and do the question properly and correctly :-D. Good luck :-)

Jon

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