-20+9k=9-4(k+4)

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Solution for -20+9k=9-4(k+4) equation:


Simplifying
-20 + 9k = 9 + -4(k + 4)

Reorder the terms:
-20 + 9k = 9 + -4(4 + k)
-20 + 9k = 9 + (4 * -4 + k * -4)
-20 + 9k = 9 + (-16 + -4k)

Combine like terms: 9 + -16 = -7
-20 + 9k = -7 + -4k

Solving
-20 + 9k = -7 + -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.
-20 + 9k + 4k = -7 + -4k + 4k

Combine like terms: 9k + 4k = 13k
-20 + 13k = -7 + -4k + 4k

Combine like terms: -4k + 4k = 0
-20 + 13k = -7 + 0
-20 + 13k = -7

Add '20' to each side of the equation.
-20 + 20 + 13k = -7 + 20

Combine like terms: -20 + 20 = 0
0 + 13k = -7 + 20
13k = -7 + 20

Combine like terms: -7 + 20 = 13
13k = 13

Divide each side by '13'.
k = 1

Simplifying
k = 1

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