<PRE><B>Question 1083435</B>
3x = 7x-5 add 5 on both sides
3x+5 = 7x-5+5
3x+5 = 7x now subtract 3x from both sides, and you get:
5 = 4x flip it to get the unknown on the left:
4x = 5
x = 5/4
x = 1.25
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check: 
3(1.25) = 7(1.25)-5
3.75 = 3.75 correct</PRE>