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Simplifying 20x4r + 15x5r7 = 5x4r Solving 20rx4 + 15r7x5 = 5rx4 Solving for variable 'r'. Reorder the terms: 20rx4 + -5rx4 + 15r7x5 = 5rx4 + -5rx4 Combine like terms: 20rx4 + -5rx4 = 15rx4 15rx4 + 15r7x5 = 5rx4 + -5rx4 Combine like terms: 5rx4 + -5rx4 = 0 15rx4 + 15r7x5 = 0 Factor out the Greatest Common Factor (GCF), '15rx4'. 15rx4(1 + r6x) = 0 Ignore the factor 15.Subproblem 1
Set the factor 'rx4' equal to zero and attempt to solve: Simplifying rx4 = 0 Solving rx4 = 0 Move all terms containing r to the left, all other terms to the right. Simplifying rx4 = 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 '(1 + r6x)' equal to zero and attempt to solve: Simplifying 1 + r6x = 0 Solving 1 + r6x = 0 Move all terms containing r to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + r6x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + r6x = 0 + -1 r6x = 0 + -1 Combine like terms: 0 + -1 = -1 r6x = -1 Divide each side by 'x'. r6 = -1x-1 Simplifying r6 = -1x-1 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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