4-21(1+3.5d)=22.5

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Solution for 4-21(1+3.5d)=22.5 equation: 



4-21(1+3.5d)=22.5

We move all terms to the left:

4-21(1+3.5d)-(22.5)=0

We add all the numbers together, and all the variables

-21(3.5d+1)+4-(22.5)=0

We add all the numbers together, and all the variables

-21(3.5d+1)-18.5=0

We multiply parentheses

-63d-21-18.5=0

We add all the numbers together, and all the variables

-63d-39.5=0

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

-63d=39.5

d=39.5/-63

d=-11.2857142857/18

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