Answer:
11
Step-by-step explanation:
METHOD 1:
Solve the equation:
[tex]2n+5=27[/tex] subtract 5 from both sides
[tex]2n+5-5=27-5[/tex]
[tex]2n=22[/tex] duvude both sides by 2
[tex]\dfrac{2n}{2}=\dfrac{22}{2}\\\\n=11[/tex]
METHOD 2:
Put each value from the replacement set to the equation, and check for equality:
for x = 11:
[tex]2(11)+5=22+5=27[/tex] CORRECT
for x = 12:
[tex]2(12)+5=24+5=29\neq27[/tex]
for x = 13:
[tex]2(13)+5=26+5=31\neq27[/tex]
