3+k=7

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Solution for 3+k=7 equation: 


Simplifying
3 + k = 7

Solving
3 + k = 7

Solving for variable 'k'.

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

Add '-3' to each side of the equation.
3 + -3 + k = 7 + -3

Combine like terms: 3 + -3 = 0
0 + k = 7 + -3
k = 7 + -3

Combine like terms: 7 + -3 = 4
k = 4

Simplifying
k = 4

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