Answer:
Choice A,B and D are selected.
Step-by-step explanation:
To find : Select all the equations where n=6?
Solution :
Choice A : [tex]4=10-n[/tex]
Solving the equation,
[tex]n=10-4[/tex]
[tex]n=6[/tex]
It is selected.
Choice B : [tex]3=\frac{n}{2}[/tex]
Solving the equation,
[tex]3\times 2=n[/tex]
[tex]n=6[/tex]
It is selected.
Choice C : [tex]12=n+7[/tex]
Solving the equation,
[tex]n=12-7[/tex]
[tex]n=5[/tex]
It is not selected.
Choice D : [tex]8n=48[/tex]
Solving the equation,
[tex]n=\frac{48}{8}[/tex]
[tex]n=6[/tex]
It is selected.
Choice E : 5+n=8
Solving the equation,
[tex]n=8-5[/tex]
[tex]n=3[/tex]
It is not selected.
Therefore, Choice A,B and D are selected.
