4=0.4(d-5)

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Solution for 4=0.4(d-5) equation: 



4=0.4(d-5)

We move all terms to the left:

4-(0.4(d-5))=0



We calculate terms in parentheses: -(0.4(d-5)), so:

0.4(d-5)

We multiply parentheses

0.4d-2

Back to the equation:

-(0.4d-2)



We get rid of parentheses

-0.4d+2+4=0

We add all the numbers together, and all the variables

-0.4d+6=0

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

-0.4d=-6

d=-6/-0.4

d=+15

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