-10(9-k)=3(k+12)

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Solution for -10(9-k)=3(k+12) equation:


Simplifying
-10(9 + -1k) = 3(k + 12)
(9 * -10 + -1k * -10) = 3(k + 12)
(-90 + 10k) = 3(k + 12)

Reorder the terms:
-90 + 10k = 3(12 + k)
-90 + 10k = (12 * 3 + k * 3)
-90 + 10k = (36 + 3k)

Solving
-90 + 10k = 36 + 3k

Solving for variable 'k'.

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

Add '-3k' to each side of the equation.
-90 + 10k + -3k = 36 + 3k + -3k

Combine like terms: 10k + -3k = 7k
-90 + 7k = 36 + 3k + -3k

Combine like terms: 3k + -3k = 0
-90 + 7k = 36 + 0
-90 + 7k = 36

Add '90' to each side of the equation.
-90 + 90 + 7k = 36 + 90

Combine like terms: -90 + 90 = 0
0 + 7k = 36 + 90
7k = 36 + 90

Combine like terms: 36 + 90 = 126
7k = 126

Divide each side by '7'.
k = 18

Simplifying
k = 18

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