SOLUTION: please explain to me how to work this out, step by step if at all possible If the system 4x - 6y = 4 24x - 8y = -1 is to be solved using the addition method, by

Algebra ->  Linear-equations -> SOLUTION: please explain to me how to work this out, step by step if at all possible If the system 4x - 6y = 4 24x - 8y = -1 is to be solved using the addition method, by       Log On


   

Question 144831: please explain to me how to work this out, step by step if at all possible
If the system 4x - 6y = 4
24x - 8y = -1
is to be solved using the addition method, by what constant should one of the equations be multiplied if the x terms are to drop out?
Select the correct answer:
A) -6
B) 1/6
C) 4
D) -4
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If the system
4x - 6y = 4
24x - 8y = -1
is to be solved using the addition method, by what constant should one of the equations be multiplied if the x terms are to drop out?
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Multiply the 1st equation by -6 so it will look like the following:
-24x + 36y = -24
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Now when you add that equation to 24x-8y=-1 you should notice
that you get no x terms.
That allows you to solve for y.
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Cheers,
Stan H.