20+k+2k=80

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Solution for 20+k+2k=80 equation: 


Simplifying
20 + k + 2k = 80

Combine like terms: k + 2k = 3k
20 + 3k = 80

Solving
20 + 3k = 80

Solving for variable 'k'.

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

Add '-20' to each side of the equation.
20 + -20 + 3k = 80 + -20

Combine like terms: 20 + -20 = 0
0 + 3k = 80 + -20
3k = 80 + -20

Combine like terms: 80 + -20 = 60
3k = 60

Divide each side by '3'.
k = 20

Simplifying
k = 20

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