SOLUTION: I am trying to figure out this proportion. x-3 all over x = 4/7

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Question 336549: I am trying to figure out this proportion.
x-3 all over x = 4/7
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%28x-3%29%2Fx=4%2F7 Start with the given equation.


7%28x-3%29=4x Cross multiply.


7x-21=4x Distribute.


7x=4x%2B21 Add 21 to both sides.


7x-4x=21 Subtract 4x from both sides.


3x=21 Combine like terms on the left side.


x=%2821%29%2F%283%29 Divide both sides by 3 to isolate x.


x=7 Reduce.


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Answer:

So the solution is x=7


If you need more help, email me at jim_thompson5910@hotmail.com

Also, feel free to check out my website.

Jim