Alexis J.

asked • 08/18/18

If 3x+y = k(x-3) then x=?

I just want help on how to rearrange the equation in terms of x.

1 Expert Answer

By:

Carol H. answered • 08/18/18

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3x + y = k(x - 3)
3x + y = kx - 3k
3x - kx = -3k - y
x(3 - k) = -3k - y
x = (-3k - y)/(3 - k)
 
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Alexis J.

My anwser choices are A.3k-y/k B.k+3y/k-y C. 3k+y/k+3 D. 3(k+y)/k+3 E. y+3k/k-3
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08/18/18

Arturo O.

Student,
 
Carol's answer is correct, and is equivalent to
 
(y + 3k)/(k - 3).
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08/18/18

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