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gayaneshka [121]
3 years ago
14

Solve 3x+1=3. What is x plz?

Mathematics
2 answers:
postnew [5]3 years ago
7 0
3x+1=3
3x=3-1
3x=2
x=2/3
lilavasa [31]3 years ago
5 0
We can solve simple algebras by reversing the mathematical symbols and shifting the number or unknown to the other side of the equation. 
+ turns to -
x turns to ÷
(or vice versa)

So, first step to solve this, 
shift +1 to the other side, turn it into -1.
3x = 3 - 1
3x = 2
Now, shift x3 to the other side, turn it into ÷3.
x = 2 ÷ 3
x = 2/3 (or 0.6666666...)
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Answer:

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Step-by-step explanation:

In order to solve this problem we must start by graphing the given function and finding the differential area we will use to set our integral up. (See attached picture).

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V=\int\limits^b_a {\pi r^{2}} \, dy

where:

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so the volume becomes:

V=\int\limits^\frac{\pi}{3}_0 {\pi (3 sec(y))^{2}} \, dy

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V=\int\limits^\frac{\pi}{3}_0 {9\pi sec^{2}(y)} \, dy

and the integral can be rewritten like this:

V=9\pi\int\limits^\frac{\pi}{3}_0 {sec^{2}(y)} \, dy

which is a standard integral so we solve it to:

V=9\pi[tan y]\limits^\frac{\pi}{3}_0

so we get:

V=9\pi[tan \frac{\pi}{3} - tan 0]

which yields:

V=9\pi\sqrt{3}]

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