4=0.4(3d-4)

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Solution for 4=0.4(3d-4) equation: 



4=0.4(3d-4)

We move all terms to the left:

4-(0.4(3d-4))=0



We calculate terms in parentheses: -(0.4(3d-4)), so:

0.4(3d-4)

We multiply parentheses

1.2d-1.6

Back to the equation:

-(1.2d-1.6)



We get rid of parentheses

-1.2d+1.6+4=0

We add all the numbers together, and all the variables

-1.2d+5.6=0

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

-1.2d=-5.6

d=-5.6/-1.2

d=4+0.8/1.2

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