7-0.4k=7

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Solution for 7-0.4k=7 equation: 


Simplifying
7 + -0.4k = 7

Add '-7' to each side of the equation.
7 + -7 + -0.4k = 7 + -7

Combine like terms: 7 + -7 = 0
0 + -0.4k = 7 + -7
-0.4k = 7 + -7

Combine like terms: 7 + -7 = 0
-0.4k = 0

Solving
-0.4k = 0

Solving for variable 'k'.

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

Divide each side by '-0.4'.
k = 0

Simplifying
k = 0

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