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Simplifying r(z3 + -7) + (z3 + -7) = 0 Reorder the terms: r(-7 + z3) + (z3 + -7) = 0 (-7 * r + z3 * r) + (z3 + -7) = 0 (-7r + rz3) + (z3 + -7) = 0 Reorder the terms: -7r + rz3 + (-7 + z3) = 0 Remove parenthesis around (-7 + z3) -7r + rz3 + -7 + z3 = 0 Reorder the terms: -7 + -7r + rz3 + z3 = 0 Solving -7 + -7r + rz3 + z3 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '7' to each side of the equation. -7 + -7r + rz3 + 7 + z3 = 0 + 7 Reorder the terms: -7 + 7 + -7r + rz3 + z3 = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -7r + rz3 + z3 = 0 + 7 -7r + rz3 + z3 = 0 + 7 Combine like terms: 0 + 7 = 7 -7r + rz3 + z3 = 7 Add '-1z3' to each side of the equation. -7r + rz3 + z3 + -1z3 = 7 + -1z3 Combine like terms: z3 + -1z3 = 0 -7r + rz3 + 0 = 7 + -1z3 -7r + rz3 = 7 + -1z3 Reorder the terms: -7 + -7r + rz3 + z3 = 7 + -1z3 + -7 + z3 Reorder the terms: -7 + -7r + rz3 + z3 = 7 + -7 + -1z3 + z3 Combine like terms: 7 + -7 = 0 -7 + -7r + rz3 + z3 = 0 + -1z3 + z3 -7 + -7r + rz3 + z3 = -1z3 + z3 Combine like terms: -1z3 + z3 = 0 -7 + -7r + rz3 + z3 = 0 The solution to this equation could not be determined.
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