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kozerog [31]
3 years ago
8

Can someone pls help me i need to know what is 2x - 1 = 7

Mathematics
1 answer:
Elis [28]3 years ago
6 0

Answer:

The solution for x would be 4.

Step-by-step explanation:

2x - 1 = 7

The value of x is unknown, but you do know that you are multiplying 2 by x. So, if you rewrite the equation as 7+1=2x, you know that 8=2x. If you then divide both sides by 2, you're left with 4=x which would mean that the variable x has a solution of 4

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Please answer In(5x-3)=4
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Answer:

\huge\boxed{Answer\hookleftarrow}

(5x - 3) = 4 \\ 5x - 3 = 4 \\ 5x = 4 + 3 \\ 5x = 7 \\ x =  \frac{7}{5}  \\ x = 1.4

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8 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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Write the numbers 3, 2, and 8 in an addition sentence. Show two more ways to find the sum.
Nata [24]
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4 years ago
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Find two consecutive odd integers such that the square of the first added to 3 times the second, is 24. Part a: Define the varia
fgiga [73]

Given:

There are two consecutive odd integers such that the square of the first added to 3 times the second, is 24.

To find:

Part a: Define the variables.

Part b: Set up an equations that can be solved to find the integers.

Part c: Find the integers.

Solution:

Part a:

Let x be the first odd integers. Then next consecutive odd integer is x+2, because the difference between two consecutive odd integers is 2.

Part b:

Square of first odd integers = x^2

Three times of second odd integers = 3(x+2)

It is given that the sum of square of first odd integers and three times of second odd integers is 24. So, the required equation is:

x^2+3(x+2)=24

Part c:

The equation is:

x^2+3(x+2)=24

It can be written as:

x^2+3x+6=24

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Splitting the middle term, we get

x^2+6x-3x-18=0

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x=3,-6

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Second odd integer = x+2

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Therefore, the two consecutive odd integers are 3 and 5.

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