k-1=4k+8

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Solution for k-1=4k+8 equation:


Simplifying
k + -1 = 4k + 8

Reorder the terms:
-1 + k = 4k + 8

Reorder the terms:
-1 + k = 8 + 4k

Solving
-1 + k = 8 + 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.
-1 + k + -4k = 8 + 4k + -4k

Combine like terms: k + -4k = -3k
-1 + -3k = 8 + 4k + -4k

Combine like terms: 4k + -4k = 0
-1 + -3k = 8 + 0
-1 + -3k = 8

Add '1' to each side of the equation.
-1 + 1 + -3k = 8 + 1

Combine like terms: -1 + 1 = 0
0 + -3k = 8 + 1
-3k = 8 + 1

Combine like terms: 8 + 1 = 9
-3k = 9

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

Simplifying
k = -3

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