-3(-7k+4)+9=-13

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Solution for -3(-7k+4)+9=-13 equation:


Simplifying
-3(-7k + 4) + 9 = -13

Reorder the terms:
-3(4 + -7k) + 9 = -13
(4 * -3 + -7k * -3) + 9 = -13
(-12 + 21k) + 9 = -13

Reorder the terms:
-12 + 9 + 21k = -13

Combine like terms: -12 + 9 = -3
-3 + 21k = -13

Solving
-3 + 21k = -13

Solving for variable 'k'.

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

Add '3' to each side of the equation.
-3 + 3 + 21k = -13 + 3

Combine like terms: -3 + 3 = 0
0 + 21k = -13 + 3
21k = -13 + 3

Combine like terms: -13 + 3 = -10
21k = -10

Divide each side by '21'.
k = -0.4761904762

Simplifying
k = -0.4761904762

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