Sunday

December 21, 2014

December 21, 2014

Posted by **Courtney** on Tuesday, August 24, 2010 at 8:22am.

This is all I know how to do and don't know if it's even right. Or what to do from here.

5(4r-3c)-2(7r-9c)=0 solve for r

20r-15c-14r-11c=0

6r-26c=0

- Maath -
**Reiny**, Tuesday, August 24, 2010 at 8:41amsee the post above this, follow the same steps

- Maath -
**Courtney**, Tuesday, August 24, 2010 at 9:21amthis is the steps:

20r-15c-14r+18c=0

6r+3c=0

so for my final answer I got r=c/2 is that correct?

- Maath -
**Reiny**, Tuesday, August 24, 2010 at 9:33amclose ...

from your second last line

6r + 3c = 0

6r = - 3c

r = -c/2

btw, I am glad you caught your error in the steps of your original at the top,

where did the -11c come from?

**Answer this Question**

**Related Questions**

Maath - Solve the equation for the indicated variable. 4x-3a-(10x+7a)=0 solve ...

Maath - Solve the equation for the indicated variable. 4x-3a-(10x+7a)=0 solve ...

Maath - Solve the equation for the indicated variable. 5(4r-3c)-2(7r-9c)=0 solve...

maath - How to do you solve this 3^x=9 graphically? What do I do. Thank you

Maath - Solve The Equation 3/y+2 over 7/y-4

Maath - What does it mean to solve each equation graphically? 5x+7=32

Maath - Use the elimination method to solve each system. How do you do this? {u+...

Algebra 2 - Approximate to the nearest tenth the positive real zeroes of f(x)=x^...

Algebra 2 (check) - I have some problems that I've answered and I need someone ...

algebra - how would i find an equation of a line that goes through points(1,6) ...