3(2d-7)-(8-8d)-4d+9=3-(2-7d)-4d

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Solution for 3(2d-7)-(8-8d)-4d+9=3-(2-7d)-4d equation: 



3(2d-7)-(8-8d)-4d+9=3-(2-7d)-4d

We move all terms to the left:

3(2d-7)-(8-8d)-4d+9-(3-(2-7d)-4d)=0

We add all the numbers together, and all the variables

3(2d-7)-(-8d+8)-4d-(3-(-7d+2)-4d)+9=0

We add all the numbers together, and all the variables

-4d+3(2d-7)-(-8d+8)-(3-(-7d+2)-4d)+9=0

We multiply parentheses

-4d+6d-(-8d+8)-(3-(-7d+2)-4d)-21+9=0

We get rid of parentheses

-4d+6d+8d-(3-(-7d+2)-4d)-8-21+9=0



We calculate terms in parentheses: -(3-(-7d+2)-4d), so:

3-(-7d+2)-4d

determiningTheFunctionDomain
-(-7d+2)-4d+3

We add all the numbers together, and all the variables

-4d-(-7d+2)+3

We get rid of parentheses

-4d+7d-2+3

We add all the numbers together, and all the variables

3d+1

Back to the equation:

-(3d+1)



We add all the numbers together, and all the variables

10d-(3d+1)-20=0

We get rid of parentheses

10d-3d-1-20=0

We add all the numbers together, and all the variables

7d-21=0

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

7d=21

d=21/7

d=3

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