Question

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

Answer 1

11

Explanation:

METHOD 1:

Solve the equation:

`2n+5=27` subtract 5 from both sides

`2n+5-5=27-5`

`2n=22` duvude both sides by 2

`(2n)/(2)=(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\\eq27`

for x = 13:

`2(13)+5=26+5=31\\eq27`

Answer 2

Answer: n=11

Explanation:

2n +5=27

2n=27-5

2n=22

n=11