2006-08-16 08:33:43 · 8 answers · asked by mbtafan 3 in Education & Reference ➔ Homework Help
1. Distribute the negative sign to get rid of the parentheses.
7r-6r+5=7
2. Combine like terms.
r+5=7
r=2
2006-08-16 08:39:43 · answer #1 · answered by toyo_uke 2 · 0⤊ 0⤋
r = 2
2006-08-16 08:55:09 · answer #2 · answered by LaLaLa :) 2 · 0⤊ 0⤋
r=2
2006-08-16 08:39:42 · answer #3 · answered by Ryan M 2 · 0⤊ 0⤋
7r - (6r - 5) = 7
7r - 6r + 5 = 7
7r - 6r = 7 - 5
r = 2
Basically you want to try to get all of the variables (in this case, r) on one side and all of the integers on the other side so you can divide and get the value of r. The trick is to distribute the negative sign and remember that --5 = +5!
2006-08-16 08:51:59 · answer #4 · answered by Shmity D 1 · 0⤊ 0⤋
Same as 7r-6r-5=7
7r-6r=r
r-5=7
add 5 to both sides
r=12
2006-08-16 08:40:37 · answer #5 · answered by Underwonder 2 · 0⤊ 0⤋
first get rid of the confusing parenthesis:
7r -6r + 5 = 7
then put like #'s on either side:
7r - 6r = 7-5
simplify:
1r = 2
or
r = 2
:)
2006-08-16 08:49:03 · answer #6 · answered by sasmallworld 6 · 0⤊ 0⤋
7r-(6r-5)=7
7r-6r+5=7
r+5=7
r=7-5
r=2
2006-08-16 08:41:29 · answer #7 · answered by flori 4 · 0⤊ 0⤋
i dont know i'm about to start middle school on august 28
2006-08-16 08:39:38 · answer #8 · answered by Mizz Snuggley 1 · 0⤊ 0⤋