5d+7-8d+9=-d+42

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Solution for 5d+7-8d+9=-d+42 equation: 



5d+7-8d+9=-d+42

We move all terms to the left:

5d+7-8d+9-(-d+42)=0

We add all the numbers together, and all the variables

5d-8d-(-1d+42)+7+9=0

We add all the numbers together, and all the variables

-3d-(-1d+42)+16=0

We get rid of parentheses

-3d+1d-42+16=0

We add all the numbers together, and all the variables

-2d-26=0

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

-2d=26

d=26/-2

d=-13

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