2007-12-07 10:24:35 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
first distrubte.
8b-4b-8=24
then simplify by combing like terms
4b-8=24
add 8 to each side and get
4b=32
then divide
b=8
2007-12-07 10:27:34 · answer #1 · answered by Nessa 4 · 0⤊ 2⤋
Simplifying
8b + -4(b + -2) = 24
Reorder the terms:
8b + -4(-2 + b) = 24
8b + (-2 * -4 + b * -4) = 24
8b + (8 + -4b) = 24
Reorder the terms:
8 + 8b + -4b = 24
Combine like terms: 8b + -4b = 4b
8 + 4b = 24
Solving
8 + 4b = 24
Solving for variable 'b'.
Move all terms containing b to the left, all other terms to the right.
Add '-8' to each side of the equation.
8 + -8 + 4b = 24 + -8
Combine like terms: 8 + -8 = 0
0 + 4b = 24 + -8
4b = 24 + -8
Combine like terms: 24 + -8 = 16
4b = 16
Divide each side by '4'.
b = 4
Simplifying
b = 4
2007-12-07 18:29:52 · answer #2 · answered by Anonymous · 1⤊ 0⤋
8b - 4 (b-2) = 24
First step is to foil -4 (b-2)
8b - 4b + 8 = 24
-4 times b is -4b
Notice here when you multiply (-4)(-2), it turns into a positive. 8.
Then, combine like terms... so do [8b - 4b] which is 4b
4b + 8 = 24
Minus 8
4b = 16
Divide by 4
b = 4
Enjoy.
2007-12-07 18:30:14 · answer #3 · answered by Kermit the Frog 4 · 1⤊ 0⤋
8b - 4(b-2)=24
8b - 4b + 8 = 24
4b + 8 = 24
4b = 16
b = 4
2007-12-07 18:30:42 · answer #4 · answered by kusheng 4 · 0⤊ 0⤋
8b -4b + 8 = 24
4b + 8 = 24
4b = 16
b = 4
2007-12-07 18:28:11 · answer #5 · answered by A A 3 · 1⤊ 0⤋
8b-4(b-2)=24
8b-4b+8=24
4b+8=24 subtract 8 from both sides
4b=16 divide both sides by 4
b=4
2007-12-07 18:28:07 · answer #6 · answered by Lady Lefty 3 · 1⤊ 0⤋
8b - 4b + 8 = 24
4b + 8 = 24
4b = 16
b = 4
2007-12-07 18:27:39 · answer #7 · answered by Ms. Exxclusive 5 · 1⤊ 0⤋
8b-4(b-2)=24
8b-4b+8=24
4b=16
---- ----
4 4
b=4
By the way, I'm almost certain you are just asking all of these questions so you don't have to do your homework. Well you can't use Yahoo! Answers on tests or quizzes so good luck with that. :)
2007-12-07 18:27:28 · answer #8 · answered by Kelly 3 · 1⤊ 0⤋
8b-4b+8=24
4b-8=24
4b-8+8=24+8
4b=32
b=8
2007-12-07 18:45:41 · answer #9 · answered by Dave aka Spider Monkey 7 · 0⤊ 1⤋
8b-4b +8=24
4b+8=24
4b+8-8=24-8
4b=16
4b/4=16/4
b=4
2007-12-07 18:27:05 · answer #10 · answered by Anonymous · 1⤊ 1⤋
multipy out to get:
8b -4b+8 = 24
simpify to get:
4b = 16
b = 4
2007-12-07 18:27:05 · answer #11 · answered by Robert C 3 · 1⤊ 0⤋