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Dunlap
Geography
7 November, 14:43
4 m + 9 + 5 m - 12 equals 42
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Daniel Whitney
7 November, 14:45
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Simplifying 4m + 9 + 5m + - 12 = 42 Reorder the terms: 9 + - 12 + 4m + 5m = 42 Combine like terms: 9 + - 12 = - 3 - 3 + 4m + 5m = 42 Combine like terms: 4m + 5m = 9m - 3 + 9m = 42 Solving - 3 + 9m = 42 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '3' to each side of the equation. - 3 + 3 + 9m = 42 + 3 Combine like terms: - 3 + 3 = 0 0 + 9m = 42 + 3 9m = 42 + 3 Combine like terms: 42 + 3 = 45 9m = 45 Divide each side by '9'. m = 5
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