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solve it and check it

2006-09-20 14:56:31 · 11 answers · asked by Anonymous in Science & Mathematics Mathematics

11 answers

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 · answer #1 · answered by sweetie 5 · 0 0

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 · answer #2 · answered by jbr930 2 · 0 0

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 · answer #3 · answered by honest abe 4 · 0 0

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 · answer #4 · answered by Kathya 2 · 0 0

Add 4 to both sides:

4b-8b = 16

Simplify:

-4b = 16

Divide by -4

b=-4

2006-09-20 14:59:56 · answer #5 · answered by Jason 3 · 0 0

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 · answer #6 · answered by Anonymous · 0 0

b= -4

2006-09-21 00:56:29 · answer #7 · answered by sweetangel 2 · 0 0

-4b = 16

b = 16/-4

b = -4

4(-4) - 4 - 8(-4) =

(-16) - (4) - (-32) = 12

2006-09-20 15:02:49 · answer #8 · answered by wmichgrad 2 · 0 0

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 · answer #9 · answered by Anonymous · 0 0

combine like terms

2006-09-20 15:53:09 · answer #10 · answered by Whatever 2 · 0 0

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