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anonymous
 5 years ago
2.1d+18=2.16(d+8)
anonymous
 5 years ago
2.1d+18=2.16(d+8)

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0If you are solving for d, you must first distribute the right side of the equation. Then you will have: 2.1d+ 18 = 2.16d + 17.28 Subtract both sides by 18 to leave the d term by itself on the left side of the equation. Then you will have: 2.1d = 2.16d  .76 Subtract both sides by 2.16d so you have d terms together on the left and the other term on the right. Then you will have: 0.06d =  .76 You can make this equation positive by multiplying both sides by 1. 0.06d = .76 Lastly, divide both sides by 0.06 to determine what d is equal to. d = 12.666666666666666666666666666667 or d = 12 and 2/3
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