15=-7k-(9k-3)

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Solution for 15=-7k-(9k-3) equation:


Simplifying
15 = -7k + -1(9k + -3)

Reorder the terms:
15 = -7k + -1(-3 + 9k)
15 = -7k + (-3 * -1 + 9k * -1)
15 = -7k + (3 + -9k)

Reorder the terms:
15 = 3 + -7k + -9k

Combine like terms: -7k + -9k = -16k
15 = 3 + -16k

Solving
15 = 3 + -16k

Solving for variable 'k'.

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

Add '16k' to each side of the equation.
15 + 16k = 3 + -16k + 16k

Combine like terms: -16k + 16k = 0
15 + 16k = 3 + 0
15 + 16k = 3

Add '-15' to each side of the equation.
15 + -15 + 16k = 3 + -15

Combine like terms: 15 + -15 = 0
0 + 16k = 3 + -15
16k = 3 + -15

Combine like terms: 3 + -15 = -12
16k = -12

Divide each side by '16'.
k = -0.75

Simplifying
k = -0.75

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