40=7d-9

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Solution for 40=7d-9 equation:


40=7d-9

We simplify the equation to the form, which is simple to understand 
40=7d-9

We move all terms containing d to the left and all other terms to the right. 
-7d=-9-40

We simplify left and right side of the equation. 
-7d=-49

We divide both sides of the equation by -07 to get d. 
d=7

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