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# Help! What is 8u=3u+35 ?

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.

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- Anonymous1 decade agoFavorite Answer
u = 7

- 1 decade ago
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

Source(s): myself - How do you think about the answers? You can sign in to vote the answer.
- CSUFGrad2006Lv 51 decade ago
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

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