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ddd [48]
3 years ago
9

Solve this equation. 5n+7=7(n+1)-2n

Mathematics
2 answers:
Rus_ich [418]3 years ago
6 0
 5n+7=7(n+1)-2n
 5n+7=7n+7-2n
 5n-7n+2n=+7-7
0n=0
n=0-0
n=0

the answer is 0

hope this help
brainliest plz

9966 [12]3 years ago
3 0
Distribute 7 to both n and 1

7(n + 1) = 7n + 7

5n + 7 = 7n + 7 - 2n

Combine like terms

5n + 7 = 7n - 2n + 7

5n + 7 = 5n + 7

If you want to solve for n, subtract 7 from both sides

5n + 7 (-7) = 5n + 7 (-7)

5n = 5n

then divide 5 from both sides

5n/5 = 5n/5

n = n

Effectively, this equation is <em>unsolvable</em>

hope this helps
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3 years ago
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DENIUS [597]

<em><u>Answer:</u></em>

4 or 7 (Check the explanation to see which one your equation <em>actually</em> is.

<em><u>Step-by-step explanation:</u></em>

One thing I want to clarify for you, It's Evaluate, not Avaluate.

Okay so, we want to find the value of 2^3x-1 and we know x = 1.

You didn't really clarify if the expression was 2^{3x-1} or 2^{3x}-1, so I'll be doing both:

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