2007-09-11 12:29:03 · 9 answers · asked by Amber C 1 in Science & Mathematics ➔ Mathematics
3r = 9
r = 3
2007-09-14 23:25:40 · answer #1 · answered by Como 7 · 0⤊ 0⤋
8=3r-1 First, you have to get the part with the variable on a side by itself by adding 1 to both sides: 8+1=3r-(-1+1) This gives you 9=3r. Now, you divide both sides by 3. 9/3=3r/3. The answer is r=3.
2007-09-11 12:52:17 · answer #2 · answered by Caroline <3 2 · 0⤊ 0⤋
r=3
2007-09-11 12:36:55 · answer #3 · answered by rawr. 4 · 1⤊ 0⤋
r=3
2007-09-11 12:36:11 · answer #4 · answered by Mrs S 5 · 1⤊ 0⤋
8 + 1 = 3r - 1 + 1
9 = 3r
9/3 = r
r = 3
2007-09-11 12:36:06 · answer #5 · answered by Anonymous · 1⤊ 0⤋
r = 3
2007-09-11 12:35:51 · answer #6 · answered by hello 1 · 1⤊ 0⤋
3r - 1 = 8
Add one to each side.
3r - 1 + 1 = 8 +1
3r = 9
Divide by 3.
3r/3 = 9/3
r = 3
2007-09-11 12:36:42 · answer #7 · answered by mybrokenending 2 · 1⤊ 1⤋
8+1=3r-1+1
9=3r
9/3=3r/3
3=r
2007-09-11 12:36:17 · answer #8 · answered by Runa 7 · 0⤊ 1⤋
r=3
You add 1 to both side to organize the equation and then you divide both sides by 3 in order to isolate the variable and from that you get r=3.
2007-09-11 12:37:13 · answer #9 · answered by I want my *old* MTV 6 · 1⤊ 0⤋