-3+2(n-1)=2n-4

Solution for -3+2(n-1)=2n-4 equation:

Simplifying
-3 + 2(n + -1) = 2n + -4

Reorder the terms:
-3 + 2(-1 + n) = 2n + -4
-3 + (-1 * 2 + n * 2) = 2n + -4
-3 + (-2 + 2n) = 2n + -4

Combine like terms: -3 + -2 = -5
-5 + 2n = 2n + -4

Reorder the terms:
-5 + 2n = -4 + 2n

Add '-2n' to each side of the equation.
-5 + 2n + -2n = -4 + 2n + -2n

Combine like terms: 2n + -2n = 0
-5 + 0 = -4 + 2n + -2n
-5 = -4 + 2n + -2n

Combine like terms: 2n + -2n = 0
-5 = -4 + 0
-5 = -4

Solving
-5 = -4

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.