-3=-(n-3)

Solution for -3=-(n-3) equation:

Simplifying
-3 = -1(n + -3)

Reorder the terms:
-3 = -1(-3 + n)
-3 = (-3 * -1 + n * -1)
-3 = (3 + -1n)

Solving
-3 = 3 + -1n

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add 'n' to each side of the equation.
-3 + n = 3 + -1n + n

Combine like terms: -1n + n = 0
-3 + n = 3 + 0
-3 + n = 3

Add '3' to each side of the equation.
-3 + 3 + n = 3 + 3

Combine like terms: -3 + 3 = 0
0 + n = 3 + 3
n = 3 + 3

Combine like terms: 3 + 3 = 6
n = 6

Simplifying
n = 6