5b-4= 2b+17?

2008-06-04 10:25 am

5b-4= 2b+17 whoever gets the answer i will give them 10 points
what does b equal to?

回答 (10)

2008-06-04 10:38 am

✔ 最佳答案

5b-4=2b+17
transposing 2b and 4 to opposite sides equals
5b-2b=17+4
3b=21
b=21/3
b=7

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2008-06-04 6:24 pm

5b - 4 = 2b + 17
5b - 2b = 4 + 17
3b = 21
b = 21/3
b = 7

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2008-06-04 6:01 pm

3b=17+4
3b=21
b=7

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2008-06-04 5:53 pm

5b-4= 2b+17

move all the 'b' to the left hand side and all the numbers to the right hand side,

5b-2b=17+4

3b=21

divide by 3,

b=7

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2008-06-04 5:52 pm

5b-4= 2b+17
5b-2b= 17+4
3b=21
b=7

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2008-06-04 5:49 pm

3b = 21
b = 7

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2008-06-04 5:35 pm

b= 7

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2008-06-04 5:33 pm

3b=21 b=21/3=7

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2008-06-04 5:32 pm

5b - 4= 2b + 17

subtract 2b from both sides:
3b - 4 = 17

add 4 to both sides:
3b = 21

divide both sides by 3
b = 7

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2008-06-04 5:31 pm

5b-4=2b+17
transpose 2b and 4 to the opposite sides of each.
5b - 2b = 17 +4
3b = 21
b=7

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