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dusya [7]
3 years ago
15

4^(x-1)+4^(x)+4^(x-1)=84

Mathematics
1 answer:
creativ13 [48]3 years ago
3 0

Answer:

7.66

Step-by-step explanation:

Just open the parenthesis.

4x-4+4x+4x-4=84

Now simplify and solve

12x-8=84

12x=92

x= 7.66

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Answer:

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Step-by-step explanation:

In this proble, we defined:

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So, the given number is 4,520,389, where we need to state the proper variable according to the position of each digit and its value.

4,520,389 = 4M + 5CM + 2DM + 3C + 8D + 9U

In words, the first term represents 4 millions, the second term represents 5 hundred thousands, the third term represents twenty thousands, the fourth term represents three hundreds, the fifth term represents eighty and the las term represents 9 units.

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