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Simplifying 7m + -21n + 49 = 0 Reorder the terms: 49 + 7m + -21n = 0 Solving 49 + 7m + -21n = 0 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-49' to each side of the equation. 49 + 7m + -49 + -21n = 0 + -49 Reorder the terms: 49 + -49 + 7m + -21n = 0 + -49 Combine like terms: 49 + -49 = 0 0 + 7m + -21n = 0 + -49 7m + -21n = 0 + -49 Combine like terms: 0 + -49 = -49 7m + -21n = -49 Add '21n' to each side of the equation. 7m + -21n + 21n = -49 + 21n Combine like terms: -21n + 21n = 0 7m + 0 = -49 + 21n 7m = -49 + 21n Divide each side by '7'. m = -7 + 3n Simplifying m = -7 + 3n
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