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Simplifying (-4m2 + 7n2 + -9n) + -1[(7m2 + -9m + 7n) + (-7m2) + 4n2] = 0 Reorder the terms: (-4m2 + -9n + 7n2) + -1[(7m2 + -9m + 7n) + (-7m2) + 4n2] = 0 Remove parenthesis around (-4m2 + -9n + 7n2) -4m2 + -9n + 7n2 + -1[(7m2 + -9m + 7n) + (-7m2) + 4n2] = 0 Reorder the terms: -4m2 + -9n + 7n2 + -1[(-9m + 7m2 + 7n) + (-7m2) + 4n2] = 0 Remove parenthesis around (-9m + 7m2 + 7n) -4m2 + -9n + 7n2 + -1[-9m + 7m2 + 7n + (-7m2) + 4n2] = 0 Reorder the terms: -4m2 + -9n + 7n2 + -1[-9m + 7m2 + (-7m2) + 7n + 4n2] = 0 Combine like terms: 7m2 + (-7m2) = 0 -4m2 + -9n + 7n2 + -1[-9m + 0 + 7n + 4n2] = 0 -4m2 + -9n + 7n2 + -1[-9m + 7n + 4n2] = 0 -4m2 + -9n + 7n2 + [-9m * -1 + 7n * -1 + 4n2 * -1] = 0 -4m2 + -9n + 7n2 + [9m + -7n + -4n2] = 0 Reorder the terms: 9m + -4m2 + -9n + -7n + 7n2 + -4n2 = 0 Combine like terms: -9n + -7n = -16n 9m + -4m2 + -16n + 7n2 + -4n2 = 0 Combine like terms: 7n2 + -4n2 = 3n2 9m + -4m2 + -16n + 3n2 = 0 Solving 9m + -4m2 + -16n + 3n2 = 0 Solving for variable 'm'. The solution to this equation could not be determined.
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