10k-9=8k+15

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Solution for 10k-9=8k+15 equation:


Simplifying
10k + -9 = 8k + 15

Reorder the terms:
-9 + 10k = 8k + 15

Reorder the terms:
-9 + 10k = 15 + 8k

Solving
-9 + 10k = 15 + 8k

Solving for variable 'k'.

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

Add '-8k' to each side of the equation.
-9 + 10k + -8k = 15 + 8k + -8k

Combine like terms: 10k + -8k = 2k
-9 + 2k = 15 + 8k + -8k

Combine like terms: 8k + -8k = 0
-9 + 2k = 15 + 0
-9 + 2k = 15

Add '9' to each side of the equation.
-9 + 9 + 2k = 15 + 9

Combine like terms: -9 + 9 = 0
0 + 2k = 15 + 9
2k = 15 + 9

Combine like terms: 15 + 9 = 24
2k = 24

Divide each side by '2'.
k = 12

Simplifying
k = 12

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