SOLUTION: I am having problems solving these two question Solve: X/5X+10+x-3/x+2=7/5 and Solve: 3/7=15/x thank you

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Question 89330: I am having problems solving these two question
Solve: X/5X+10+x-3/x+2=7/5
and
Solve: 3/7=15/x
thank you
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Solve:
X/5X+10+x-3/x+2=7/5
:
Assume you mean, (a couple sets of brackets would help alot)
%28x%2F%285x%2B10%29%29+%2B+%28%28x-3%29%2F%28x%2B2%29%29 = 7%2F5
:
%28x%2F%285%28x%2B2%29%29%29+%2B+%28%28x-3%29%2F%28x%2B2%29%29 = 7%2F5
:
5(x+2) would be the common denominator, if we mult equation by 5(x+2), we have:
x + 5(x-3) = 7(x+2)
:
x + 5x - 15 = 7x + 14
:
6x - 7x = 14 + 15
:
-1x = 29
:
x = -29
:
:
Solve: 3/7=15/x
:
3%2F7 = 15%2Fx
:
Cross multiply:
3x = 7*15
:
3x = 105
:
x = 105/3
:
x = 35