2(2k-1)=-3.6(a-1)

Solution for 2(2k-1)=-3.6(a-1) equation:

Simplifying
2(2k + -1) = -3.6(a + -1)

Reorder the terms:
2(-1 + 2k) = -3.6(a + -1)
(-1 * 2 + 2k * 2) = -3.6(a + -1)
(-2 + 4k) = -3.6(a + -1)

Reorder the terms:
-2 + 4k = -3.6(-1 + a)
-2 + 4k = (-1 * -3.6 + a * -3.6)
-2 + 4k = (3.6 + -3.6a)

Solving
-2 + 4k = 3.6 + -3.6a

Solving for variable 'k'.

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

Add '2' to each side of the equation.
-2 + 2 + 4k = 3.6 + 2 + -3.6a

Combine like terms: -2 + 2 = 0
0 + 4k = 3.6 + 2 + -3.6a
4k = 3.6 + 2 + -3.6a

Combine like terms: 3.6 + 2 = 5.6
4k = 5.6 + -3.6a

Divide each side by '4'.
k = 1.4 + -0.9a

Simplifying
k = 1.4 + -0.9a