Answer:
7x10^4
Step-by-step explanation:
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The Correct Answer Is...
<em><u>9.</u></em>
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<em><u>-AnonymousGiantsFan</u></em>
Answer: infinite solutions
Step-by-step explanation: any value of d makes the equation true. By simplifying the right side, we get -d + 4, which is the same as 4 - d, so we essentially get 4 - d = 4 - d.