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masha68 [24]
3 years ago
5

2/3n=4n-10/3n-1/2 can you show me how to do it step by step please

Mathematics
1 answer:
aleksklad [387]3 years ago
4 0

Sorry IDk............    


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Can someone solve this? and tell me how?
maksim [4K]

Answer:

1/3

Step-by-step explanation:

When working with balanced expressions (stuff on both sides of the equal sign), "what you do to one side, you do to the other", which keeps it balanced.

The first thing we notice is the exponent 1/4, which is one both sides, so we can get rid of it on both sides by using the <u>reverse operation</u>.

The reverse of exponents is <u>square root</u>.

(4x + 10)^{\frac{1}{4}} = (9 + 7x)^{\frac{1}{4}}\\\sqrt[\frac{1}{4}]{(4x + 10)^{\frac{1}{4}}} = \sqrt[\frac{1}{4}]{(9 + 7x)^{\frac{1}{4}}}\\\\4x + 10 = 9 + 7x

Isolate x to solve. Separate the variables and non-variables.

4x + 10 = 9 + 7x

4x - 4x + 10 = 9 + 7x - 4x          Subtract 4x from both sides

10 = 9 + 3x                

10 - 9 = 9 - 9 + 3x            Subtract 9 from both sides

1 = 3x            Divide both sides by 3 to isolate x

x = 1/3           Answer

8 0
3 years ago
From a point 80 m from the base of a tower, the angle of elevation to the top of the tower is 28°. How tall is the tower?
elena-s [515]

Answer:

43m

Step-by-step explanation:

yessir

4 0
3 years ago
Read 2 more answers
How to substitute x=-2 and x=5 into 2x^2+6-20=0 to check my work
Komok [63]
First answer (x=-2)
...
(2)[(-2)^2]+6-20
2(4)+6-20
8+6-20
14-20
<em>-6 (answer)
</em><em>
</em><em />Second answer (x=5)
...
(2)[(-5)^2]+6-20
2(25)+6-20
50+6-20
56-20
<em>36 (answer)
</em>Hope this helps!
4 0
3 years ago
How to get answer of 5/7 of 22??
Sladkaya [172]
The answer would be 15.7142857143

You can get the answer by calculating (5/7) × 22

4 0
3 years ago
Explain how to translate the phrase into an algebraic expression.
ASHA 777 [7]
Hey there.. I will be more than happy to help you today..  :)

A Number squared decreased by ten

We will do this with steps:-

Step 1 - "A number ". So, Let's say any number be x

Step 2 -  "A number squared". Our number x is squared i.e. x²

Step 3 - "A number squared" ( i.e. x²  ) is decreased by ten
x² - 10 

This is your answer.
Hope this helps you :)
4 0
3 years ago
Read 2 more answers
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