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Simplifying -9(d + 2) = -9(15 + dc) Reorder the terms: -9(2 + d) = -9(15 + dc) (2 * -9 + d * -9) = -9(15 + dc) (-18 + -9d) = -9(15 + dc) -18 + -9d = (15 * -9 + cd * -9) -18 + -9d = (-135 + -9cd) Solving -18 + -9d = -135 + -9cd Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '9cd' to each side of the equation. -18 + 9cd + -9d = -135 + -9cd + 9cd Combine like terms: -9cd + 9cd = 0 -18 + 9cd + -9d = -135 + 0 -18 + 9cd + -9d = -135 Add '18' to each side of the equation. -18 + 9cd + 18 + -9d = -135 + 18 Reorder the terms: -18 + 18 + 9cd + -9d = -135 + 18 Combine like terms: -18 + 18 = 0 0 + 9cd + -9d = -135 + 18 9cd + -9d = -135 + 18 Combine like terms: -135 + 18 = -117 9cd + -9d = -117 Reorder the terms: 117 + 9cd + -9d = -117 + 117 Combine like terms: -117 + 117 = 0 117 + 9cd + -9d = 0 Factor out the Greatest Common Factor (GCF), '9'. 9(13 + cd + -1d) = 0 Ignore the factor 9.Subproblem 1
Set the factor '(13 + cd + -1d)' equal to zero and attempt to solve: Simplifying 13 + cd + -1d = 0 Solving 13 + cd + -1d = 0 Move all terms containing d to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + cd + -13 + -1d = 0 + -13 Reorder the terms: 13 + -13 + cd + -1d = 0 + -13 Combine like terms: 13 + -13 = 0 0 + cd + -1d = 0 + -13 cd + -1d = 0 + -13 Combine like terms: 0 + -13 = -13 cd + -1d = -13 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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