N+2n-3n==

To solve the equation n + 2n - 3n, you can combine the like terms on the left side of the equation:

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

Simplifying the numbers inside the parentheses:

n + 2n - 3n = 0 * n

Any number multiplied by zero equals zero, so the result is:

n + 2n - 3n = 0

Therefore, the equation simplifies to:

0 = 0