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oksian1 [2.3K]
3 years ago
12

The solution of the equation 2^x-7=9 is x the answer is 5 .

Mathematics
2 answers:
Tom [10]3 years ago
5 0

Answer:

x=4

Step-by-step explanation:

2^x-7=9

Add 7 to each side

2^x-7+7=9+7

2^x = 16

Change 16 to a power of 2  16 = 2^4

2^x = 2^4

The bases are the same, so the powers are the same

x=4

Mila [183]3 years ago
5 0

Answer:

Step-by-step explanation:

hello :

2^x-7=9

add 7 : 2^x =16

2^x = 2^4

x=4

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Answer:

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Step-by-step explanation:

When you divide by a number, whole number or fraction, it's exactly like multiplying by its inverse.

Like if you divide 4 by 2,  you can easily express that has 4 * 1/2.

In the same manner, when you divide 3/4 by 1/3, you can say that you're multiplying 3/4 by 3/1

The result of 3/4 * 3/1 = 9 / 4

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3 years ago
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Vinvika [58]

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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