12=1d+3

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Solution for 12=1d+3 equation:


12=1d+3

We simplify the equation to the form, which is simple to understand 
12=1d+3

We move all terms containing d to the left and all other terms to the right. 
-1d=+3-12

We simplify left and right side of the equation. 
-1d=-9

We divide both sides of the equation by -01 to get d. 
d=9

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