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Simplifying 28 + 28m = 42 + 21m Solving 28 + 28m = 42 + 21m Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-21m' to each side of the equation. 28 + 28m + -21m = 42 + 21m + -21m Combine like terms: 28m + -21m = 7m 28 + 7m = 42 + 21m + -21m Combine like terms: 21m + -21m = 0 28 + 7m = 42 + 0 28 + 7m = 42 Add '-28' to each side of the equation. 28 + -28 + 7m = 42 + -28 Combine like terms: 28 + -28 = 0 0 + 7m = 42 + -28 7m = 42 + -28 Combine like terms: 42 + -28 = 14 7m = 14 Divide each side by '7'. m = 2 Simplifying m = 2
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