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15 answers

b=1

2006-07-19 02:40:15 · answer #1 · answered by Maunalee 1 · 0 0

You should really do your own homework, but here's to show you how it works out:

8b + 7 - 5b = 14 - 4b
(8b - 5b) +7 = 14 - 4b
3b + 7 = 14 - 4b
(3b + 4b) + 7 = 14 + (- 4b +4b)
7b + 7 = 14
7b + (7 - 7) = (14 - 7)
7b = 7
7b/7 = 7/7
b = 1

Just remember: Whatever you do on one side of an equation (i.e. add, subtract, mutiply, or divide a number or a variable), you must do to the other.

2006-07-19 09:45:43 · answer #2 · answered by adelinia 4 · 0 0

b = 1

2006-07-19 09:41:26 · answer #3 · answered by visionary 4 · 0 0

8b+7-5b=14-4b

The secret to doing equations is that if you do something to one side, you have to do it to the other side. (2=2, add 3 to each side, you get 2+3=2+3, which is also correct)

Rewrite the equation:
8b-5b+7=14-4b
This can be calculated so it reads:
3b+7=14-4b

Then add 4b to both sides (so that you end up with the b's on the same side of the equation):
3b+4b+7=14-4b+4b

this can be worked out so it reads:
7b+7=14

Then take 7 away from both sides, so that you have the b on its own:

7b+7-7=14-7

This can be worked out to
7b=7

Divide each side by 7

7b=7
--- --
7 7

you end up with b=1

2006-07-19 09:55:47 · answer #4 · answered by Anonymous · 0 0

8b+7-5b=14-4b
re-write

8b-5b+7=14-4b
Like terms subtract

3b+7=14-4b
add 4b to both sides of the equation.

7b+7=14
subtract 7 from both sides

7b=7
divide both sides by 7

b=1

2006-07-19 09:46:36 · answer #5 · answered by Mr. Engineer 2 · 0 0

8b+7-5b = 14-4b
3b+7 = 14-4b
3b+4b = 14-7
7b = 7
b = 7/7
b=1

2006-07-19 09:43:26 · answer #6 · answered by Anonymous · 0 0

8b+7-5b=14-4b
8b -5b +4b =14-7
7b=7
b=1

2006-07-19 10:06:15 · answer #7 · answered by Smiley 5 · 0 0

8b + 7 - 5b = 14 - 4b
(8b - 5b) +7 = 14 - 4b
3b + 7 = 14 - 4b
(3b + 4b) + 7 = 14 + (- 4b +4b)
7b + 7 = 14
7b + (7 - 7) = (14 - 7)
7b = 7
b = 1

2006-07-19 09:45:58 · answer #8 · answered by charlemagne_nagal 1 · 0 0

8b+7-5b=14-4b
8b-5b+4b=14-7
7b=7 divide both sides by 7
b=1

2006-07-19 09:44:35 · answer #9 · answered by Anonymous · 0 0

8b+7-5b=13-4b (original equation)
simplify both sides
3b+7=14-4b (simplifyed equation)
move all b's to one side and all numbers to the other side
3b+4b+7-7=14-7-4b+4b
simplify once again
7b=7
divide both sides by 7
to get
b=1



Answer: b=1

2006-07-19 09:55:18 · answer #10 · answered by hi 3 · 0 0

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