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7(3) + 8(4) x 2

21 + 32 x 2

43 x 2

86

The final answer is 86.

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โˆ™ 2011-03-22 18:52:44
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Q: What is 7a plus 8b times 2 if a equals 3 and b equals 4?
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8b = -65 so b = -8.125


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8b = e - 12n, possibly.


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It is: a(7a-8b)


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That's an equation in which b = -1


How do you factor 3x plus 8b times 9x2 - 24xb plus 64b2?

One of the factors is 3x + 8b. The other is 9x^2 -24xb + 64b^2


3a 4b equals 7a 4b?

Clearly, there are some signs missing. So let's try the four possibilities for the second terms: 1. + and + 3a + 4b = 7a + 4b Subtract 4b from each side: 3a = 7a Subtract 3a from each side: 0 = 4a Answer : a = 0, b indeterminate (ie can have any vaue). 2. + and - 3a + 4b = 7a - 4b Subtract 4b from each side: 3a = 7a - 8b Subtract 7a from each side: -4a = -8b or 4a = 8b Answer: a = 2b 3. - and - 3a - 4b = 7a - 4b Add 4b to each side: 3a = 7a Subtract 3a from each side: 0 = 4a Answer : a = 0, b indeterminate (ie can have any vaue). 4. - and + 3a - 4b = 7a + 4b Add 4b to each side: 3a = 7a + 8b Subtract 7a from each side: -4a = 8b or 4a = -8b Answer: a = -2b Can't do better than that with the information available.


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What is 5b plus 8b?

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What is the answer to b plus 7b?

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What is 4a plus 3b plus 5a plus 8b?

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If 8b plus 11-3b equals 2b plus 2 what is b?

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If 8a x 8b equals 8c divided by 8d what is d in terms of a b c?

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With the factor 4a plus 8b 16c you can find the answer and check it mentally. You would first have to find he product of all the numbers to find the value of the letter A.


What is the answer of 8b plus 4b 56 - 16b what is the value of b?

If you mean 8b+4b = 56-16b then the value of b works out as 2