(d-3)0.4=30

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Solution for (d-3)0.4=30 equation:


(d-3)0.4=30

We simplify the equation to the form, which is simple to understand 
(d-3)0.4=30

Reorder the terms in parentheses
( + 0.4d-1.2)=30

Remove unnecessary parentheses
 + 0.4d-1.2=30

We move all terms containing d to the left and all other terms to the right. 
 + 0.4d=+30+1.2

We simplify left and right side of the equation. 
 + 0.4d=+31.2

We divide both sides of the equation by 0.4 to get d. 
d=78

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