Posted by **brooke** on Tuesday, April 12, 2011 at 9:34pm.

is the answer to my equation right?

equation: 5(3r-7)+r=3(r-3)

15r-35+r=3r-9

15r+r-3r=-35-9

13r/13 = -44/13

- grade nine math -
**bobpursley**, Tuesday, April 12, 2011 at 9:46pm
no. the third line should read

15r+r-3r=35-9

- grade nine math -
**Jai**, Tuesday, April 12, 2011 at 9:47pm
from the 2nd line, when -35 is transposed to other side,

15r - 35 + r = 3r - 9

15r + r - 3r = 35 - 9

...it must be positive 35. you forgot to change its sign.

- grade nine math -
**brooke**, Tuesday, April 12, 2011 at 9:49pm
Oh so you are saying that the 35 should be a positive instead of a negative. Is that correct!!So the answer for r is 2. Thanks I think I get it.

## Answer This Question

## Related Questions

- maths - a roofer charges $25 per hour for himself and $15 per hour for his ...
- math - simplify -15r^0/30p^-2 if that's (30p)^-2 then the answer is 30p^2 if it'...
- Algebra please help - 1.(9m+6)+(-5m-6) A:4m+12 B:14m+12 C:14m-12 D:4m*** 2.(3rē+...
- algebra word problem - During the first part of a trip a canoeist travels 55 ...
- Math help please - 1. (9m + 6) + (5m 6) 4m + 12 14m + 12 14m 12 4m 2. (3r^2...
- Math Check - Hi! I need help with this one problem. My teacher told me that I ...
- MATH:Solving with 3 variables - 03p-0.25r-03q=0 0.8p-0.6r-0.05q=0 0.9p-0.15r-0....
- math - 1. (9m + 6) + (5m 6) 4m + 12 14m + 12 14m 12 4m 2. (3r^2 + 7r + 1...
- Algebra - Factor by Grouping. 15r^2-19r+6
- Math - Solve the equation 13r = 3/7. Express your answer in the simplest form. a...

More Related Questions