2007-11-17 02:30:57 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Hi, dear
7b + 3 - 4b = 3 - 3(b + 4)?
7b + 3 - 4b = 3 - 3b - 12
3b + 3 = -9 - 3b
3b + 3b = -9 - 3
6b = - 12
b = -12 / 6
b = -2
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Now "b = -2"
7b + 3 - 4b = 3 - 3(b + 4)?
7(-2) + 3 - 4(-2) = 3 - 3(-2 + 4)
-14 + 3 + 8 = 3 + 6 -12
- 3 = - 3 then..... it GOOD!
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Bye
2007-11-17 02:46:21 · answer #1 · answered by ƒέ 4 · 0⤊ 0⤋
Simplifying
7b + 3 + -4b = 3 + -3(b + 4)
Reorder the terms:
3 + 7b + -4b = 3 + -3(b + 4)
Combine like terms: 7b + -4b = 3b
3 + 3b = 3 + -3(b + 4)
Reorder the terms:
3 + 3b = 3 + -3(4 + b)
3 + 3b = 3 + (4 * -3 + b * -3)
3 + 3b = 3 + (-12 + -3b)
Combine like terms: 3 + -12 = -9
3 + 3b = -9 + -3b
Solving
3 + 3b = -9 + -3b
Solving for variable 'b'.
Move all terms containing b to the left, all other terms to the right.
Add '3b' to each side of the equation.
3 + 3b + 3b = -9 + -3b + 3b
Combine like terms: 3b + 3b = 6b
3 + 6b = -9 + -3b + 3b
Combine like terms: -3b + 3b = 0
3 + 6b = -9 + 0
3 + 6b = -9
Add '-3' to each side of the equation.
3 + -3 + 6b = -9 + -3
Combine like terms: 3 + -3 = 0
0 + 6b = -9 + -3
6b = -9 + -3
Combine like terms: -9 + -3 = -12
6b = -12
Divide each side by '6'.
b = -2
Simplifying
b = -2
2007-11-17 06:39:20 · answer #2 · answered by Anonymous · 0⤊ 0⤋
7b + 3 - 4b = 3 - 3(b + 4)?
ok ihelp you.
7b + 3 - 4b = 3 - 3(b + 4)?
3b + 3 = 3 - 3b -12
3b + 3b = 3 -12 -3
6b = -12
b = -2
2007-11-17 02:35:14 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Write down your math problem:
3b + 3 = 3 - 3b -12
3b + 3b = -3 + 3 -12
6b = -12
b = -2
Check your answer:
7(-2) + 3 - 4(-2) = 3 - 3 (-2 + 4)
-14 + 3 + 8 = 3 + 6 - 12
-3 = -3
I did the best that I could.
2007-11-17 05:06:34 · answer #4 · answered by Denise 1 · 0⤊ 0⤋
7b + 3 - 4b = 3 - 3 (b + 4)
7b - 4b +3 = 3 - 3b - 12
3b + 3 = -3b - 9
combine like terms...
3b + 3b = -9 - 3
6b = -12
b = -2
2007-11-17 02:40:53 · answer #5 · answered by rnygelle87 2 · 0⤊ 0⤋
3 + 7b + -4b = 3 + -3(b + 4)
Combine like terms: 7b + -4b = 3b
3 + 3b = 3 + -3(b + 4)
Reorder the terms:
3 + 3b = 3 + -3(4 + b)
3 + 3b = 3 + (4 * -3 + b * -3)
3 + 3b = 3 + (-12 + -3b)
Combine like terms: 3 + -12 = -9
3 + 3b = -9 + -3b
Solving
3 + 3b = -9 + -3b
Move all terms containing b to the left, all other terms to the right.
Add '3b' to each side of the equation.
3 + 3b + 3b = -9 + -3b + 3b
Combine like terms: 3b + 3b = 6b
3 + 6b = -9 + -3b + 3b
Combine like terms: -3b + 3b = 0
3 + 6b = -9 + 0
3 + 6b = -9
Add '-3' to each side of the equation.
3 + -3 + 6b = -9 + -3
Combine like terms: 3 + -3 = 0
0 + 6b = -9 + -3
6b = -9 + -3
Combine like terms: -9 + -3 = -12
6b = -12
Divide each side by '6'.
b = -2
Simplifying
b = -2
2007-11-17 02:40:27 · answer #6 · answered by katie99_2006 1 · 1⤊ 0⤋
7b + 3 - 4b = 3 - 3(b + 4)
7b+3-4b= 3-3b+12
3b+3=-3b +15
if you want to solve for b
3b+3=3b +15
-3 -3
3b= -3b+12
+3 +3
6b=12
Divide by 6
b=2
2007-11-17 02:35:57 · answer #7 · answered by mveeyore_luver 4 · 0⤊ 0⤋
7b+3-4b=3-3(b+4)
3b+3=3-3b-12
6b=-12
b=-2
2007-11-17 02:39:41 · answer #8 · answered by qw098sisi 2 · 0⤊ 0⤋
b= -2
2007-11-17 02:43:19 · answer #9 · answered by jomar v 1 · 0⤊ 0⤋
3b+3 = 3 - 3b +12
6b=-12
b = -2
2007-11-17 02:34:56 · answer #10 · answered by Matt H. 3 · 0⤊ 0⤋