# Maath

posted by .

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

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 -

see the post above this, follow the same steps

• Maath -

this 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 -

close ...

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?

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