2.1k+1.3k-4.6=5.6

Solution for 2.1k+1.3k-4.6=5.6 equation:

Simplifying
2.1k + 1.3k + -4.6 = 5.6

Reorder the terms:
-4.6 + 2.1k + 1.3k = 5.6

Combine like terms: 2.1k + 1.3k = 3.4k
-4.6 + 3.4k = 5.6

Solving
-4.6 + 3.4k = 5.6

Solving for variable 'k'.

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

Add '4.6' to each side of the equation.
-4.6 + 4.6 + 3.4k = 5.6 + 4.6

Combine like terms: -4.6 + 4.6 = 0.0
0.0 + 3.4k = 5.6 + 4.6
3.4k = 5.6 + 4.6

Combine like terms: 5.6 + 4.6 = 10.2
3.4k = 10.2

Divide each side by '3.4'.
k = 3

Simplifying
k = 3