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To solve for b, you must form an equation (-5b -12 -2 = 0). Next you must separate the known numbers from the unknown by adding the sum of the knowns to both sides of the equation (-5b = 14). Then divide both sides of the equation by -5 to find the value of b (b = -2.8).

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โˆ™ 2008-03-30 15:11:47
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โˆ™ 2020-04-27 09:56:51

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Q: -5b - 12 -2 what is b?
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-5b - 12 -2?

Not sure how the problem is set up as I see a space between the minus sign and the 12 but not between the minus and the 2. But, using the numbers as written: To solve for b, you must form an equation (-5b -12 -2 = 0). Next you must separate the known numbers from the unknown by adding the sum of the knowns to both sides of the equation (-5b = 14). Then divide both sides of the equation by -5 to find the value of b (b = -2.8). No no no no no. It is -5b-14 because the -5b has no relation to the others so it stays as it is and then -12-2=-14 thus getting -5b-12-2=-5b-14. Cool.


One number is 5 times a second number The sum of the numbers is 72. What are the numbers?

12 and 60 ============ a + b = 72 a = 5b replacing a by 5b in the first equation 5b + b = 72 6b = 72 b = 12 72 - 12 = 60


What is the value of b if the sum of 5b and 21b is equal to 12?

5b + 21b = 1226b = 1226 26b = 12/26


What is 5ab plus 4a-b-2ab plus 5b?

5ab-2ab+4a-b+5b = 3ab+4a+4b


What is the order pair for 4a - 5b equals 7 and 4a plus 5b equals 17?

(1) 4a-5b=7 (2) 4a+5b=17 (1)-(2) gives 4a-5b-(4a+5b)=7-17 then -10b=-10 so b=1 from (2) one gets 4a=17-5b=17-5x1=12 so a=3 (3,1) is the solution


What is b when 5b equals 30?

If: 5b = 30 Then: b = 6


What is the aswer -b plus 5b-2b?

-b+5b-2b=2b


What are 2 equivalent expressions for 5b plus 5b?

5b + 5b = 2 x 5b


How do you solve similtaneously -5a plus b equals 2 and -a -5b equals 0?

-5a + b = 2 AND -a - 5b = 0 -5a + b = 2 b = 2 + 5a *using above -a - 5b = 0 -a - 5(2 + 5a) = 0 -a - 10 - 25a = 0 -26a = 10 a = 10/-26 *using 'a' value 5a + b = 2 5(10/-26) + b = 2 -25/13 -2 = -b b = 51/13 Therefore a = 10/-26 b = 51/13


10a-5b equals 25 what is b?

10a - 5b = 25 So 5b = 10a - 25 and hence b = 2a - 5


2(a plus b) plus 3(a plus b) plus 5a?

10a + 5b


How do you factor 30b2 plus 48b-24?

6(b + 2)(5b - 2)

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