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Simplifying 2pi(r) = 40pi Multiply ip * r 2ipr = 40pi Solving 2ipr = 40ip Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '-40ip' to each side of the equation. -40ip + 2ipr = 40ip + -40ip Combine like terms: 40ip + -40ip = 0 -40ip + 2ipr = 0 Factor out the Greatest Common Factor (GCF), '2ip'. 2ip(-20 + r) = 0 Ignore the factor 2.Subproblem 1
Set the factor 'ip' equal to zero and attempt to solve: Simplifying ip = 0 Solving ip = 0 Move all terms containing i to the left, all other terms to the right. Simplifying ip = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Subproblem 2
Set the factor '(-20 + r)' equal to zero and attempt to solve: Simplifying -20 + r = 0 Solving -20 + r = 0 Move all terms containing i to the left, all other terms to the right. Add '20' to each side of the equation. -20 + 20 + r = 0 + 20 Combine like terms: -20 + 20 = 0 0 + r = 0 + 20 r = 0 + 20 Combine like terms: 0 + 20 = 20 r = 20 Add '-1r' to each side of the equation. r + -1r = 20 + -1r Combine like terms: r + -1r = 0 0 = 20 + -1r Simplifying 0 = 20 + -1r 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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