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Simplifying 42 + -1m = 2m + -3 Reorder the terms: 42 + -1m = -3 + 2m Solving 42 + -1m = -3 + 2m Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-2m' to each side of the equation. 42 + -1m + -2m = -3 + 2m + -2m Combine like terms: -1m + -2m = -3m 42 + -3m = -3 + 2m + -2m Combine like terms: 2m + -2m = 0 42 + -3m = -3 + 0 42 + -3m = -3 Add '-42' to each side of the equation. 42 + -42 + -3m = -3 + -42 Combine like terms: 42 + -42 = 0 0 + -3m = -3 + -42 -3m = -3 + -42 Combine like terms: -3 + -42 = -45 -3m = -45 Divide each side by '-3'. m = 15 Simplifying m = 15
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