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Simplifying 9d2 + -7d = 0 Reorder the terms: -7d + 9d2 = 0 Solving -7d + 9d2 = 0 Solving for variable 'd'. Factor out the Greatest Common Factor (GCF), 'd'. d(-7 + 9d) = 0Subproblem 1
Set the factor 'd' equal to zero and attempt to solve: Simplifying d = 0 Solving d = 0 Move all terms containing d to the left, all other terms to the right. Simplifying d = 0Subproblem 2
Set the factor '(-7 + 9d)' equal to zero and attempt to solve: Simplifying -7 + 9d = 0 Solving -7 + 9d = 0 Move all terms containing d to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 9d = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 9d = 0 + 7 9d = 0 + 7 Combine like terms: 0 + 7 = 7 9d = 7 Divide each side by '9'. d = 0.7777777778 Simplifying d = 0.7777777778Solution
d = {0, 0.7777777778}
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