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madam [21]
3 years ago
8

Please help me!!!!!!!!!

Mathematics
2 answers:
Ber [7]3 years ago
4 0

Answer:

<h2>11</h2>

Step-by-step explanation:

METHOD 1:

Solve the equation:

2n+5=27       <em>subtract 5 from both sides</em>

2n+5-5=27-5

2n=22      <em>duvude both sides by 2</em>

\dfrac{2n}{2}=\dfrac{22}{2}\\\\n=11

METHOD 2:

Put each value from the replacement set to the equation, and check for equality:

for x = 11:

2(11)+5=22+5=27      CORRECT

for x = 12:

2(12)+5=24+5=29\neq27

for x = 13:

2(13)+5=26+5=31\neq27

andreev551 [17]3 years ago
3 0

Answer: n=11

Explanation:

2n +5=27

2n=27-5

2n=22

n=11

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