123=3(1-5k)

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Solution for 123=3(1-5k) equation: 



123=3(1-5k)

We move all terms to the left:

123-(3(1-5k))=0

We add all the numbers together, and all the variables

-(3(-5k+1))+123=0



We calculate terms in parentheses: -(3(-5k+1)), so:

3(-5k+1)

We multiply parentheses

-15k+3

Back to the equation:

-(-15k+3)



We get rid of parentheses

15k-3+123=0

We add all the numbers together, and all the variables

15k+120=0

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

15k=-120

k=-120/15

k=-8

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