15k-4=-21

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Solution for 15k-4=-21 equation: 


Simplifying
15k + -4 = -21

Reorder the terms:
-4 + 15k = -21

Solving
-4 + 15k = -21

Solving for variable 'k'.

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

Add '4' to each side of the equation.
-4 + 4 + 15k = -21 + 4

Combine like terms: -4 + 4 = 0
0 + 15k = -21 + 4
15k = -21 + 4

Combine like terms: -21 + 4 = -17
15k = -17

Divide each side by '15'.
k = -1.133333333

Simplifying
k = -1.133333333

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