450+40d=975-45.45d-19.55d

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Solution for 450+40d=975-45.45d-19.55d equation: 



450+40d=975-45.45d-19.55d

We move all terms to the left:

450+40d-(975-45.45d-19.55d)=0

We add all the numbers together, and all the variables

40d-(-65d+975)+450=0

We get rid of parentheses

40d+65d-975+450=0

We add all the numbers together, and all the variables

105d-525=0

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

105d=525

d=525/105

d=5

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