42=18-4d

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Solution for 42=18-4d equation:



42=18-4d
We move all terms to the left:
42-(18-4d)=0
We add all the numbers together, and all the variables
-(-4d+18)+42=0
We get rid of parentheses
4d-18+42=0
We add all the numbers together, and all the variables
4d+24=0
We move all terms containing d to the left, all other terms to the right
4d=-24
d=-24/4
d=-6

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