-3(-20k+20)-18=-6(-8k-15)

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Solution for -3(-20k+20)-18=-6(-8k-15) equation: 



-3(-20k+20)-18=-6(-8k-15)

We move all terms to the left:

-3(-20k+20)-18-(-6(-8k-15))=0

We multiply parentheses

60k-(-6(-8k-15))-60-18=0



We calculate terms in parentheses: -(-6(-8k-15)), so:

-6(-8k-15)

We multiply parentheses

48k+90

Back to the equation:

-(48k+90)



We add all the numbers together, and all the variables

60k-(48k+90)-78=0

We get rid of parentheses

60k-48k-90-78=0

We add all the numbers together, and all the variables

12k-168=0

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

12k=168

k=168/12

k=14

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