57=k-42

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Solution for 57=k-42 equation:


Simplifying
57 = k + -42

Reorder the terms:
57 = -42 + k

Solving
57 = -42 + k

Solving for variable 'k'.

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

Add '-1k' to each side of the equation.
57 + -1k = -42 + k + -1k

Combine like terms: k + -1k = 0
57 + -1k = -42 + 0
57 + -1k = -42

Add '-57' to each side of the equation.
57 + -57 + -1k = -42 + -57

Combine like terms: 57 + -57 = 0
0 + -1k = -42 + -57
-1k = -42 + -57

Combine like terms: -42 + -57 = -99
-1k = -99

Divide each side by '-1'.
k = 99

Simplifying
k = 99

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