hi dear;
4b-4-8b=12
4b -8b = 12 +4
-4b = 16
b = 16/-4
b = -4
now Checking;
4*(-4) - 4 - 8*(-4) = 12
-16 -4 + 32 = 12
-20 +32 = 12
+12 = +12
Good Luck
2006-09-21 03:54:12
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answer #1
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answered by sweetie 5
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Rearrange it
4b-8b-4=12
-4b-4=12
-4b = 16 (Adding 4 on both sides of the equation)
b= -4 (dividing by -4 to calculate b)
2006-09-20 15:01:46
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answer #2
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answered by jbr930 2
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flip the minus 4 to the other side, adding it to 12 and then subtracting coefficients 8 from 4 and you get; 4b - 8b = 12 plus 4 => -4b = 16, and everyone knows a negative times a negative equals a positive, in this case, (-4) (-4) = 16,
therefore, b = -4
2006-09-21 02:17:49
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answer #3
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answered by honest abe 4
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first move the constants to one side and the variables to the other so: 4b-8b=12+4, reduce like terms: -4b=16, divide by -4: b=-4
Check it: 4(-4)-4-8(-4)=12
-16-4+32=12
-20+32=12
12=12
Hope this can help you to solve other problems:)
2006-09-20 15:01:44
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answer #4
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answered by Kathya 2
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Add 4 to both sides:
4b-8b = 16
Simplify:
-4b = 16
Divide by -4
b=-4
2006-09-20 14:59:56
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answer #5
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answered by Jason 3
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4b-4-8b=12
(4b-8b)-4=12
-4b-4=12
-4b=12+4
-4b=16
-b=4
b=-4
2006-09-20 15:01:07
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answer #6
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answered by Anonymous
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b= -4
2006-09-21 00:56:29
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answer #7
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answered by sweetangel 2
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-4b = 16
b = 16/-4
b = -4
4(-4) - 4 - 8(-4) =
(-16) - (4) - (-32) = 12
2006-09-20 15:02:49
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answer #8
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answered by wmichgrad 2
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A liquid in a severe rigidity atmosphere has a greater robust boiling component than whilst the liquid is at atmospheric rigidity. In different words, the boiling component of drinks varies with and relies upon on the encompassing environmental rigidity. i don't think of themoon has a sturdy adequate pessur to fuse hydrogen and oxygen atoms to make water simply by fact it has a smaller gravitational pull additionally simply by fact it lacks oxygen
2016-12-15 11:28:29
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answer #9
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answered by Anonymous
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combine like terms
2006-09-20 15:53:09
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answer #10
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answered by Whatever 2
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