2.6+2.8k-4-0.8k=5

Solution for 2.6+2.8k-4-0.8k=5 equation:

Simplifying
2.6 + 2.8k + -4 + -0.8k = 5

Reorder the terms:
2.6 + -4 + 2.8k + -0.8k = 5

Combine like terms: 2.6 + -4 = -1.4
-1.4 + 2.8k + -0.8k = 5

Combine like terms: 2.8k + -0.8k = 2k
-1.4 + 2k = 5

Solving
-1.4 + 2k = 5

Solving for variable 'k'.

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

Add '1.4' to each side of the equation.
-1.4 + 1.4 + 2k = 5 + 1.4

Combine like terms: -1.4 + 1.4 = 0.0
0.0 + 2k = 5 + 1.4
2k = 5 + 1.4

Combine like terms: 5 + 1.4 = 6.4
2k = 6.4

Divide each side by '2'.
k = 3.2

Simplifying
k = 3.2