It's for my homework in pre-algebra. I can't figure it out, and it's on my nerves. lol! I keep getting 0. But I know it's not right because the answer has a letter and it goes in a riddle, and it wouldn't make sense if it was 0.
2006-12-04 09:41:06 · 7 answers · asked by (R) Sarah and Andy. 4 in Science & Mathematics ➔ Mathematics
u = 7
2006-12-04 09:58:42 · answer #1 · answered by Anonymous · 0⤊ 0⤋
8u=3u+35
5u = 35
u = 7
₢
2006-12-04 18:10:45 · answer #2 · answered by Luiz S 7 · 0⤊ 0⤋
8u= 3u+35
-3u -3u
5u=35
35 divided by 5u
u=7
now put it back into the problem 8*7 is 56 3*7 is 21
56=21+35
final answer is u=7
2006-12-04 17:50:39 · answer #3 · answered by dnea63 2 · 0⤊ 0⤋
8u = 3u +35
8u - 3u = 35
5u = 35
u = 35/5
u = 7
2006-12-04 17:44:16 · answer #4 · answered by revasree 2 · 1⤊ 0⤋
8u = 3u + 35 (Subtract 3u from both sides)
5u = 35 (Divide both sides by 5)
u = 7
Check:
8(7) = 3(7) + 35
56 = 21 + 35
56 = 56
QED
2006-12-04 17:52:43 · answer #5 · answered by CSUFGrad2006 5 · 0⤊ 0⤋
you - 3u from both sides. then it is 5u=35 divide each side by 5 = 7
2006-12-04 17:49:38 · answer #6 · answered by dragonpepe 2 · 0⤊ 0⤋
there all right it'd u=7
2006-12-04 17:53:54 · answer #7 · answered by mellow_musicfreak 1 · 0⤊ 0⤋