SOLUTION: Solve this proportion: 3+x/7=3x-7/3 I did most of the work and ended up with x=-29/9. Is that what x equals? Also, how would I apply that answer to the existing equation? Ple

Algebra ->  Proportions  -> Lessons -> SOLUTION: Solve this proportion: 3+x/7=3x-7/3 I did most of the work and ended up with x=-29/9. Is that what x equals? Also, how would I apply that answer to the existing equation? Ple      Log On


   

Question 1013408: Solve this proportion:
3+x/7=3x-7/3
I did most of the work and ended up with x=-29/9. Is that what x equals? Also, how would I apply that answer to the existing equation? Please show your work and thank you!
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Exactly as posted, 3+x/7=3x-7/3
and then as rendered, 3%2Bx%2F7=3x-7%2F3.

x%2F7-3x=-7%2F3-3

21%28x%2F7-3x%29=21%28-7%2F3-3%29

3x-63x=-49-63

60x=49%2B63

x=112%2F60

highlight%28x=28%2F15%29

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

Solve this proportion:
3+x/7=3x-7/3
I did most of the work and ended up with x=-29/9. Is that what x equals? Also, how would I apply that answer to the existing equation? Please show your work and thank you!
Did it occur to you that it'd be best to use PARENTHESES so your math problem would be free of ambiguity?

If it's: %283+%2B+x%29%2F7+=+%283x+-+7%29%2F3, then highlight_green%28x+=+29%2F9%29