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Simplifying r(z2 + -13) + (z2 + -13) = 0 Reorder the terms: r(-13 + z2) + (z2 + -13) = 0 (-13 * r + z2 * r) + (z2 + -13) = 0 (-13r + rz2) + (z2 + -13) = 0 Reorder the terms: -13r + rz2 + (-13 + z2) = 0 Remove parenthesis around (-13 + z2) -13r + rz2 + -13 + z2 = 0 Reorder the terms: -13 + -13r + rz2 + z2 = 0 Solving -13 + -13r + rz2 + z2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '13' to each side of the equation. -13 + -13r + rz2 + 13 + z2 = 0 + 13 Reorder the terms: -13 + 13 + -13r + rz2 + z2 = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -13r + rz2 + z2 = 0 + 13 -13r + rz2 + z2 = 0 + 13 Combine like terms: 0 + 13 = 13 -13r + rz2 + z2 = 13 Add '-1z2' to each side of the equation. -13r + rz2 + z2 + -1z2 = 13 + -1z2 Combine like terms: z2 + -1z2 = 0 -13r + rz2 + 0 = 13 + -1z2 -13r + rz2 = 13 + -1z2 Reorder the terms: -13 + -13r + rz2 + z2 = 13 + -1z2 + -13 + z2 Reorder the terms: -13 + -13r + rz2 + z2 = 13 + -13 + -1z2 + z2 Combine like terms: 13 + -13 = 0 -13 + -13r + rz2 + z2 = 0 + -1z2 + z2 -13 + -13r + rz2 + z2 = -1z2 + z2 Combine like terms: -1z2 + z2 = 0 -13 + -13r + rz2 + z2 = 0 The solution to this equation could not be determined.
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