SOLUTION: Hello, Please help me with this: 4/31=5/x Thank you

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Question 70065: Hello,
Please help me with this: 4/31=5/x
Thank you
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
4%2F31=5%2Fx Start with given equation
%28x%29%284%2F31%29=cross%28x%29%285%2Fcross%28x%29%29Multiply both sides by x to cancel the x on the right side
cross%28%2831%2F4%29%284%2F31%29%29x=%2831%2F4%295Multiply both sides by 31/4 to isolate x
x=155%2F4Simplify