-1=2(d-6)-7

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Solution for -1=2(d-6)-7 equation: 



-1=2(d-6)-7

We move all terms to the left:

-1-(2(d-6)-7)=0



We calculate terms in parentheses: -(2(d-6)-7), so:

2(d-6)-7

We multiply parentheses

2d-12-7

We add all the numbers together, and all the variables

2d-19

Back to the equation:

-(2d-19)



We get rid of parentheses

-2d+19-1=0

We add all the numbers together, and all the variables

-2d+18=0

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

-2d=-18

d=-18/-2

d=+9

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