2.19(d+7)=-6.57

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Solution for 2.19(d+7)=-6.57 equation: 



2.19(d+7)=-6.57

We move all terms to the left:

2.19(d+7)-(-6.57)=0

We add all the numbers together, and all the variables

2.19(d+7)+6.57=0

We multiply parentheses

2.19d+15.33+6.57=0

We add all the numbers together, and all the variables

2.19d+21.9=0

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

2.19d=-21.9

d=-21.9/2.19

d=-10

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