31=72+k

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Solution for 31=72+k equation:


Simplifying
31 = 72 + k

Solving
31 = 72 + 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.
31 + -1k = 72 + k + -1k

Combine like terms: k + -1k = 0
31 + -1k = 72 + 0
31 + -1k = 72

Add '-31' to each side of the equation.
31 + -31 + -1k = 72 + -31

Combine like terms: 31 + -31 = 0
0 + -1k = 72 + -31
-1k = 72 + -31

Combine like terms: 72 + -31 = 41
-1k = 41

Divide each side by '-1'.
k = -41

Simplifying
k = -41

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