13=-4k+9

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Solution for 13=-4k+9 equation:


Simplifying
13 = -4k + 9

Reorder the terms:
13 = 9 + -4k

Solving
13 = 9 + -4k

Solving for variable 'k'.

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

Add '4k' to each side of the equation.
13 + 4k = 9 + -4k + 4k

Combine like terms: -4k + 4k = 0
13 + 4k = 9 + 0
13 + 4k = 9

Add '-13' to each side of the equation.
13 + -13 + 4k = 9 + -13

Combine like terms: 13 + -13 = 0
0 + 4k = 9 + -13
4k = 9 + -13

Combine like terms: 9 + -13 = -4
4k = -4

Divide each side by '4'.
k = -1

Simplifying
k = -1

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