Question

15-3n=n-1

Answer 1

16=4n

Answer 2

n=4

Answer 3

PLEASE COME AGAIN :D

Answer 4

15-3n=n-1

Since n contains the variable to solve for, move it to the left-hand side of the equation by subtracting n from both sides.
-3n+15-n=-1

Since -3n and -n are like terms, subtract n from -3n to get -4n.
-4n+15=-1

Since 15 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 15 from both sides.
-4n=-15-1

Subtract 1 from -15 to get -16.
-4n=-16

Divide each term in the equation by -4.
-(4n)/(-4)=-(16)/(-4)

Simplify the left-hand side of the equation by canceling the common factors.
n=-(16)/(-4)

Simplify the right-hand side of the equation by simplifying each term.
n=4