3(k-1.2)=12k

Solution for 3(k-1.2)=12k equation:

Simplifying
3(k + -1.2) = 12k

Reorder the terms:
3(-1.2 + k) = 12k
(-1.2 * 3 + k * 3) = 12k
(-3.6 + 3k) = 12k

Solving
-3.6 + 3k = 12k

Solving for variable 'k'.

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

Add '-12k' to each side of the equation.
-3.6 + 3k + -12k = 12k + -12k

Combine like terms: 3k + -12k = -9k
-3.6 + -9k = 12k + -12k

Combine like terms: 12k + -12k = 0
-3.6 + -9k = 0

Add '3.6' to each side of the equation.
-3.6 + 3.6 + -9k = 0 + 3.6

Combine like terms: -3.6 + 3.6 = 0.0
0.0 + -9k = 0 + 3.6
-9k = 0 + 3.6

Combine like terms: 0 + 3.6 = 3.6
-9k = 3.6

Divide each side by '-9'.
k = -0.4

Simplifying
k = -0.4