5k-5=42

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Solution for 5k-5=42 equation: 


Simplifying
5k + -5 = 42

Reorder the terms:
-5 + 5k = 42

Solving
-5 + 5k = 42

Solving for variable 'k'.

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

Add '5' to each side of the equation.
-5 + 5 + 5k = 42 + 5

Combine like terms: -5 + 5 = 0
0 + 5k = 42 + 5
5k = 42 + 5

Combine like terms: 42 + 5 = 47
5k = 47

Divide each side by '5'.
k = 9.4

Simplifying
k = 9.4

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