6-1d+9=7d-9

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Solution for 6-1d+9=7d-9 equation: 



6-1d+9=7d-9

We move all terms to the left:

6-1d+9-(7d-9)=0

We add all the numbers together, and all the variables

-1d-(7d-9)+15=0

We get rid of parentheses

-1d-7d+9+15=0

We add all the numbers together, and all the variables

-8d+24=0

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

-8d=-24

d=-24/-8

d=+3

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