-1-4d=7-2d

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Solution for -1-4d=7-2d equation: 



-1-4d=7-2d

We move all terms to the left:

-1-4d-(7-2d)=0

We add all the numbers together, and all the variables

-4d-(-2d+7)-1=0

We get rid of parentheses

-4d+2d-7-1=0

We add all the numbers together, and all the variables

-2d-8=0

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

-2d=8

d=8/-2

d=-4

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