5(30-k)=105

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Solution for 5(30-k)=105 equation: 



5(30-k)=105

We move all terms to the left:

5(30-k)-(105)=0

We add all the numbers together, and all the variables

5(-1k+30)-105=0

We multiply parentheses

-5k+150-105=0

We add all the numbers together, and all the variables

-5k+45=0

We move all terms containing k to the left, all other terms to the right

-5k=-45

k=-45/-5

k=+9

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