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Simplifying 18rs + -15st + 21rt = 0 Reorder the terms: 18rs + 21rt + -15st = 0 Solving 18rs + 21rt + -15st = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '15st' to each side of the equation. 18rs + 21rt + -15st + 15st = 0 + 15st Combine like terms: -15st + 15st = 0 18rs + 21rt + 0 = 0 + 15st 18rs + 21rt = 0 + 15st Remove the zero: 18rs + 21rt = 15st Combine like terms: 15st + -15st = 0 18rs + 21rt + -15st = 0 Factor out the Greatest Common Factor (GCF), '3'. 3(6rs + 7rt + -5st) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(6rs + 7rt + -5st)' equal to zero and attempt to solve: Simplifying 6rs + 7rt + -5st = 0 Solving 6rs + 7rt + -5st = 0 Move all terms containing r to the left, all other terms to the right. Add '5st' to each side of the equation. 6rs + 7rt + -5st + 5st = 0 + 5st Combine like terms: -5st + 5st = 0 6rs + 7rt + 0 = 0 + 5st 6rs + 7rt = 0 + 5st Remove the zero: 6rs + 7rt = 5st 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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