-(2n+6)=-(n-1)-n

Solution for -(2n+6)=-(n-1)-n equation:

Simplifying
-1(2n + 6) = -1(n + -1) + -1n

Reorder the terms:
-1(6 + 2n) = -1(n + -1) + -1n
(6 * -1 + 2n * -1) = -1(n + -1) + -1n
(-6 + -2n) = -1(n + -1) + -1n

Reorder the terms:
-6 + -2n = -1(-1 + n) + -1n
-6 + -2n = (-1 * -1 + n * -1) + -1n
-6 + -2n = (1 + -1n) + -1n

Combine like terms: -1n + -1n = -2n
-6 + -2n = 1 + -2n

Add '2n' to each side of the equation.
-6 + -2n + 2n = 1 + -2n + 2n

Combine like terms: -2n + 2n = 0
-6 + 0 = 1 + -2n + 2n
-6 = 1 + -2n + 2n

Combine like terms: -2n + 2n = 0
-6 = 1 + 0
-6 = 1

Solving
-6 = 1

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.