15=7+3k-12

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Solution for 15=7+3k-12 equation:


Simplifying
15 = 7 + 3k + -12

Reorder the terms:
15 = 7 + -12 + 3k

Combine like terms: 7 + -12 = -5
15 = -5 + 3k

Solving
15 = -5 + 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.
15 + -3k = -5 + 3k + -3k

Combine like terms: 3k + -3k = 0
15 + -3k = -5 + 0
15 + -3k = -5

Add '-15' to each side of the equation.
15 + -15 + -3k = -5 + -15

Combine like terms: 15 + -15 = 0
0 + -3k = -5 + -15
-3k = -5 + -15

Combine like terms: -5 + -15 = -20
-3k = -20

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

Simplifying
k = 6.666666667

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