1+7k+6=21

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Solution for 1+7k+6=21 equation: 


Simplifying
1 + 7k + 6 = 21

Reorder the terms:
1 + 6 + 7k = 21

Combine like terms: 1 + 6 = 7
7 + 7k = 21

Solving
7 + 7k = 21

Solving for variable 'k'.

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

Add '-7' to each side of the equation.
7 + -7 + 7k = 21 + -7

Combine like terms: 7 + -7 = 0
0 + 7k = 21 + -7
7k = 21 + -7

Combine like terms: 21 + -7 = 14
7k = 14

Divide each side by '7'.
k = 2

Simplifying
k = 2

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