7k+7-1=20

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Solution for 7k+7-1=20 equation: 


Simplifying
7k + 7 + -1 = 20

Reorder the terms:
7 + -1 + 7k = 20

Combine like terms: 7 + -1 = 6
6 + 7k = 20

Solving
6 + 7k = 20

Solving for variable 'k'.

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

Add '-6' to each side of the equation.
6 + -6 + 7k = 20 + -6

Combine like terms: 6 + -6 = 0
0 + 7k = 20 + -6
7k = 20 + -6

Combine like terms: 20 + -6 = 14
7k = 14

Divide each side by '7'.
k = 2

Simplifying
k = 2

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