n+3=2n

Solution for n+3=2n equation:

Simplifying
n + 3 = 2n

Reorder the terms:
3 + n = 2n

Solving
3 + n = 2n

Solving for variable 'n'.

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

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

Combine like terms: n + -2n = -1n
3 + -1n = 2n + -2n

Combine like terms: 2n + -2n = 0
3 + -1n = 0

Add '-3' to each side of the equation.
3 + -3 + -1n = 0 + -3

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

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

Divide each side by '-1'.
n = 3

Simplifying
n = 3