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Simplifying 9r3 + 18r2 = 72 Reorder the terms: 18r2 + 9r3 = 72 Solving 18r2 + 9r3 = 72 Solving for variable 'r'. Reorder the terms: -72 + 18r2 + 9r3 = 72 + -72 Combine like terms: 72 + -72 = 0 -72 + 18r2 + 9r3 = 0 Factor out the Greatest Common Factor (GCF), '9'. 9(-8 + 2r2 + r3) = 0 Ignore the factor 9.Subproblem 1
Set the factor '(-8 + 2r2 + r3)' equal to zero and attempt to solve: Simplifying -8 + 2r2 + r3 = 0 Solving -8 + 2r2 + r3 = 0 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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