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Simplifying (M + -7)(m + -3) = 0 Reorder the terms: (-7 + M)(m + -3) = 0 Reorder the terms: (-7 + M)(-3 + m) = 0 Multiply (-7 + M) * (-3 + m) (-7(-3 + m) + M(-3 + m)) = 0 ((-3 * -7 + m * -7) + M(-3 + m)) = 0 ((21 + -7m) + M(-3 + m)) = 0 (21 + -7m + (-3 * M + m * M)) = 0 (21 + -7m + (-3M + mM)) = 0 Reorder the terms: (21 + -3M + -7m + mM) = 0 (21 + -3M + -7m + mM) = 0 Solving 21 + -3M + -7m + mM = 0 Solving for variable 'M'. Move all terms containing M to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + -3M + -7m + -21 + mM = 0 + -21 Reorder the terms: 21 + -21 + -3M + -7m + mM = 0 + -21 Combine like terms: 21 + -21 = 0 0 + -3M + -7m + mM = 0 + -21 -3M + -7m + mM = 0 + -21 Combine like terms: 0 + -21 = -21 -3M + -7m + mM = -21 Add '7m' to each side of the equation. -3M + -7m + 7m + mM = -21 + 7m Combine like terms: -7m + 7m = 0 -3M + 0 + mM = -21 + 7m -3M + mM = -21 + 7m Reorder the terms: 21 + -3M + -7m + mM = -21 + 7m + 21 + -7m Reorder the terms: 21 + -3M + -7m + mM = -21 + 21 + 7m + -7m Combine like terms: -21 + 21 = 0 21 + -3M + -7m + mM = 0 + 7m + -7m 21 + -3M + -7m + mM = 7m + -7m Combine like terms: 7m + -7m = 0 21 + -3M + -7m + mM = 0 The solution to this equation could not be determined.
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