3(4d+1)+-9d=(2+-1d)

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Solution for 3(4d+1)+-9d=(2+-1d) equation: 



3(4d+1)+-9d=(2+-1d)

We move all terms to the left:

3(4d+1)+-9d-((2+-1d))=0

We add all the numbers together, and all the variables

3(4d+1)-9d-((-1d))+=0

We add all the numbers together, and all the variables

-9d+3(4d+1)-((-1d))=0

We multiply parentheses

-9d+12d-((-1d))+3=0



We calculate terms in parentheses: -((-1d)), so:

(-1d)

We get rid of parentheses

-d

Back to the equation:

-(-d)



We add all the numbers together, and all the variables

-9d+12d-(-1d)+3=0

We add all the numbers together, and all the variables

3d-(-1d)+3=0

We get rid of parentheses

3d+1d+3=0

We add all the numbers together, and all the variables

4d+3=0

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

4d=-3

d=-3/4

d=-3/4

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