40+k=3(5-8k)

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Solution for 40+k=3(5-8k) equation: 



40+k=3(5-8k)

We move all terms to the left:

40+k-(3(5-8k))=0

We add all the numbers together, and all the variables

k-(3(-8k+5))+40=0



We calculate terms in parentheses: -(3(-8k+5)), so:

3(-8k+5)

We multiply parentheses

-24k+15

Back to the equation:

-(-24k+15)



We get rid of parentheses

k+24k-15+40=0

We add all the numbers together, and all the variables

25k+25=0

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

25k=-25

k=-25/25

k=-1

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