7(3k-3)=k-5

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Solution for 7(3k-3)=k-5 equation:


Simplifying
7(3k + -3) = k + -5

Reorder the terms:
7(-3 + 3k) = k + -5
(-3 * 7 + 3k * 7) = k + -5
(-21 + 21k) = k + -5

Reorder the terms:
-21 + 21k = -5 + k

Solving
-21 + 21k = -5 + k

Solving for variable 'k'.

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

Add '-1k' to each side of the equation.
-21 + 21k + -1k = -5 + k + -1k

Combine like terms: 21k + -1k = 20k
-21 + 20k = -5 + k + -1k

Combine like terms: k + -1k = 0
-21 + 20k = -5 + 0
-21 + 20k = -5

Add '21' to each side of the equation.
-21 + 21 + 20k = -5 + 21

Combine like terms: -21 + 21 = 0
0 + 20k = -5 + 21
20k = -5 + 21

Combine like terms: -5 + 21 = 16
20k = 16

Divide each side by '20'.
k = 0.8

Simplifying
k = 0.8

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