Question

Could you help me with a problem?
r/3 + 6/3 = r/6 + 8/6
3r + 18 = r + 8
2r = -10
r = -5
The answer is incorrect. I need to know where I went astray.

Answer 1

The second line

Answer 2

I multiplied by six and got the wrong answer. What do I need to do in this next step?

Answer 3

you hav to make the common denominator 6

Answer 4

The common denominator would be six, correct?

Answer 5

Yup

Answer 6

so: 2r/6 + 12/6 = r/6 + 8/6

Answer 7

I was working on it when you beat me to it. Thank you very much for your help.

Answer 8

Oh :D no problemo

Answer 9

so did u get what r equals to?

Answer 10

r=-4

Answer 11

YUP :DD

Answer 12

r/3 + 6/3 = r/6 + 8/6
Look to have easier equation if we want to have r should get out (/6) so multiplied all of the equation to6should have :
6*(r/3 + 6/3)=r/3 * 6/1 + 6/3 * 6/1 =2 r + 12 or 3r + 18 ?!:)
And :
(r/6 + 8/6) =r+8
So we have :
2 r + 12=r+8
and : 2r-r=+8-12=>r=-4
But finally answer there was (-5)
Got it ?;)
@gregatron
I hope it can help you ;)