what's n ...7=6-n/7

Question

Im a dad trying to help my son with algebra plz help 

Answer 1

7=6-n/7

7-6=6-6-n/7 (6-6=0)

1=-n/7

7(1)=(-n/7)7   [(1/7)(7)=1]

7=-n

7(-1)=(-n)(-1)

-7=n

the idea is to isolate the variable

always undo addition or subtraction first, then undo multiplication or division

whatever you do to one side of the equation you do to the other side

 

hope this helps

Answer 2

7 = 6 - n/7

1 = -n/7

-7 = n

Answer 3

7 = 6 - (n/7)

 

Subtract 6 from both sides:

 

1 = -n/7

 

Multiply both sides by -7:

 

-7 = n

 

Check:

7 = 6 - (n/7)

7 = 6 - (-7/7)

7 = 6 - (-1)

7 = 6 + 1

7 = 7

Check!