k+.4=3k

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Solution for k+.4=3k equation:


Simplifying
k + 0.4 = 3k

Reorder the terms:
0.4 + k = 3k

Solving
0.4 + k = 3k

Solving for variable 'k'.

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

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

Combine like terms: k + -3k = -2k
0.4 + -2k = 3k + -3k

Combine like terms: 3k + -3k = 0
0.4 + -2k = 0

Add '-0.4' to each side of the equation.
0.4 + -0.4 + -2k = 0 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + -2k = 0 + -0.4
-2k = 0 + -0.4

Combine like terms: 0 + -0.4 = -0.4
-2k = -0.4

Divide each side by '-2'.
k = 0.2

Simplifying
k = 0.2

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