SOLUTION: please help me with this. 8- w/10 =3/5 will you show me how you did it?

Algebra ->  Equations -> SOLUTION: please help me with this. 8- w/10 =3/5 will you show me how you did it?      Log On


   

Question 15328: please help me with this.
8- w/10 =3/5
will you show me how you did it?
Found 2 solutions by LilSkittleMd, rapaljer:
Answer by LilSkittleMd(119) About Me  (Show Source):
You can put this solution on YOUR website!
8-w/10=3/5
Find common denominator
8-w=6
-w=-2
w=2

Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
Did you mean +%288-w%29%2F10+=+3%2F5+ or 8+-+w%2F10+=+3%2F5+?

The tutor who answered this question for you interpreted it in the first way. However, since you did not have parentheses in the problem to indicate that 8-w is the numerator, it would normally be interpreted the second way, which I have solved below for you.

Multiply both sides of the equation by the LCD which is 10:
10%2A8+-+10%2A%28w%2F10%29+=+10%2A%283%2F5%29+
+80+-+w+=+6+
+90+-+80+-+w+=+6-80
+-w+=+-74+

Divide both sides by -1:
w = 74

R^2 at SCC