Thursday

July 31, 2014

July 31, 2014

Posted by **Aria** on Monday, August 1, 2011 at 6:11pm.

3/y+5 + 6/7y add and simplify

5-r/8-r = 3/r-8 solve

Can someone help me please? Thanks so much.

- Algebra -
**Damon**, Monday, August 1, 2011 at 6:54pm3/y+5 + 6/7y add and simplify

Perhaps you mean

3/(y+5) + 6/7y

multiply top and bottom of both by

(7y)(y+5)

3(7y)/[7y(y+5)] + 6(y+5)/[7y(y+5)]

[21y + 6y +30]/[7y^2+35y]

[27y+30]/[7y^2+35y]

=========================

5-r/8-r = 3/r-8 solve

parentheses as follows?

(5-r)/(8-r) = -3/(8-r)

multiply both sides by (8-r)

5-r = -3

r = 8

**Related Questions**

algebra - I am having trouble with this. Add (simplify if possible) (x^2 + 11x...

algebra - I am having trouble with this. Add (simplify if possible) (x^2 + 11x...

algebra - I am having trouble with this, can someone please help me? Add (...

Algebra 2 - would some one please check these for me 1. divide x^2-36y^2 over 5x...

algebra - I am having trouble with this, can someone please help me? Add (...

Math (Algebra II) - I'm trying to finish up my summer math packet, and I'm ...

Math(solving a quadratic by factoring) - Ok I get most of the problems except ...

Algebra - I'm not quite sure about these problems. I know how to do them, but it...

Math - I have 2 problems that I just need to know if they are right 1. Add, ...

PreCalculus - I'm having trouble with these problems.. Could someone please ...