-3+d=-d-7

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Solution for -3+d=-d-7 equation: 



-3+d=-d-7

We move all terms to the left:

-3+d-(-d-7)=0

We add all the numbers together, and all the variables

d-(-1d-7)-3=0

We get rid of parentheses

d+1d+7-3=0

We add all the numbers together, and all the variables

2d+4=0

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

2d=-4

d=-4/2

d=-2

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