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3 years ago

3a+8b-5c 6a- 9b+4c -7a+b+2chow do I solve this by solving using addition operation

Mathematics

1 answer:

jeyben [28]3 years ago

3 0

Answer: 2a+c

Step-by-step explanation: You add all variables that are positive then you subtract by negatives or vice versa. Add 3a+6a-7a yes subtract the 7a which gets you 2a. Add 8b+b-9b, you get 9b-9b which is 0 so you don’t need b in the problem anymore. -5a+4c+2c then you get c, because it is 1 c. So your answer is 2a+c. :P Hope this helped.

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Answer:

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Step-by-step explanation:

$2^x = 7^{x + 1}$

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Use properties of log.

$x \log 2 = (x + 1) \log 7$

$x \log 2 = x \log 7 + \log 7$

$x \log 2 - x \log 7 = \log 7$

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