SOLUTION: 2/5=x-2/20 Solve for x..How am I supposed to do this? I am so confused.

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Question 85668: 2/5=x-2/20 Solve for x..How am I supposed to do this? I am so confused.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
2/5=x-2/20 Solve for x.
:
Assume you mean:
2%2F5 = %28%28x-2%29%29%2F20
:
First get rid of the denominators, multiply the equation by 20:
%2820%292%2F5 = %2820%29%28%28x-2%29%29%2F20
Leaving you with:
4(2) = x - 2
8 = x - 2
8 + 2 = x: added 2 to both sides:
x = 10
:
Check, substitute 10 for x:
2%2F5 = %28%2810-2%29%29%2F20
2%2F5 = 8%2F20 same as 2%2F5 = 2%2F5