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Simplifying 42 = 21m Solving 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. 42 + -21m = 21m + -21m Combine like terms: 21m + -21m = 0 42 + -21m = 0 Add '-42' to each side of the equation. 42 + -42 + -21m = 0 + -42 Combine like terms: 42 + -42 = 0 0 + -21m = 0 + -42 -21m = 0 + -42 Combine like terms: 0 + -42 = -42 -21m = -42 Divide each side by '-21'. m = 2 Simplifying m = 2
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