-3k-8+7=-21

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Solution for -3k-8+7=-21 equation:


Simplifying
-3k + -8 + 7 = -21

Reorder the terms:
-8 + 7 + -3k = -21

Combine like terms: -8 + 7 = -1
-1 + -3k = -21

Solving
-1 + -3k = -21

Solving for variable 'k'.

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

Add '1' to each side of the equation.
-1 + 1 + -3k = -21 + 1

Combine like terms: -1 + 1 = 0
0 + -3k = -21 + 1
-3k = -21 + 1

Combine like terms: -21 + 1 = -20
-3k = -20

Divide each side by '-3'.
k = 6.666666667

Simplifying
k = 6.666666667

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