6(3.5+n)=12n

Solution for 6(3.5+n)=12n equation:

Simplifying
6(3.5 + n) = 12n
(3.5 * 6 + n * 6) = 12n
(21 + 6n) = 12n

Solving
21 + 6n = 12n

Solving for variable 'n'.

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

Add '-12n' to each side of the equation.
21 + 6n + -12n = 12n + -12n

Combine like terms: 6n + -12n = -6n
21 + -6n = 12n + -12n

Combine like terms: 12n + -12n = 0
21 + -6n = 0

Add '-21' to each side of the equation.
21 + -21 + -6n = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -6n = 0 + -21
-6n = 0 + -21

Combine like terms: 0 + -21 = -21
-6n = -21

Divide each side by '-6'.
n = 3.5

Simplifying
n = 3.5