-75=-5(1+k)-5(8k-4)

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Solution for -75=-5(1+k)-5(8k-4) equation: 



-75=-5(1+k)-5(8k-4)

We move all terms to the left:

-75-(-5(1+k)-5(8k-4))=0

We add all the numbers together, and all the variables

-(-5(k+1)-5(8k-4))-75=0



We calculate terms in parentheses: -(-5(k+1)-5(8k-4)), so:

-5(k+1)-5(8k-4)

We multiply parentheses

-5k-40k-5+20

We add all the numbers together, and all the variables

-45k+15

Back to the equation:

-(-45k+15)



We get rid of parentheses

45k-15-75=0

We add all the numbers together, and all the variables

45k-90=0

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

45k=90

k=90/45

k=2

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