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Brut [27]
3 years ago
5

Three more than the product of a number 4 is 15

Mathematics
2 answers:
ivann1987 [24]3 years ago
6 0
X=3    
4 times three is 12 plus three is 15
weqwewe [10]3 years ago
3 0
3+4x=15 
4x=15-3
4x=12
x=12/4
x=3

The check is:

<span>If x=3 then, </span>

3+ (4 X 3)=15

<span>3+12=15</span>
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Answer:

The solution set can be given as:

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Step-by-step explanation:

Given function:

f(x)=\frac{1}{2x+6}

To find the domain of the function in set notation.

Solution:

For the function f(x) to exist the denominator must be ≠ 0

We have the denominator (2x+6) which  cannot be = 0.

Thus, we can find the domain of the function using the above relation.

The function f(x) will not exist when:

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Solving for x

Subtracting both sides by 6.

2x+6-6=0-6

2x=-6

Dividing both sides by 2.

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Thus, the function will not exist at x=-3. This means it has all real number solutions except -3.

The solution set can be given as:

\{x|x\ \epsilon\ R,x\neq -3\}

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Step-by-step explanation:

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