SOLUTION: How to to solve this x /a + x/3a= 4-x Solve for x

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Question 824847: How to to solve this
x /a + x/3a= 4-x
Solve for x
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
x /a + x/3a= 4-x
Solve for x
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Multiply thru by 3a
3x + x = 12a - 3ax
4x = 12a - 3ax
4x + 3ax = 12a
x*(4 + 3a) = 12a
x+=+12a%2F%283a+%2B+4%29