3(15+k)=105

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Solution for 3(15+k)=105 equation: 


Simplifying
3(15 + k) = 105
(15 * 3 + k * 3) = 105
(45 + 3k) = 105

Solving
45 + 3k = 105

Solving for variable 'k'.

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

Add '-45' to each side of the equation.
45 + -45 + 3k = 105 + -45

Combine like terms: 45 + -45 = 0
0 + 3k = 105 + -45
3k = 105 + -45

Combine like terms: 105 + -45 = 60
3k = 60

Divide each side by '3'.
k = 20

Simplifying
k = 20

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