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Simplifying -3m + -5 = 7m + -21 Reorder the terms: -5 + -3m = 7m + -21 Reorder the terms: -5 + -3m = -21 + 7m Solving -5 + -3m = -21 + 7m Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-7m' to each side of the equation. -5 + -3m + -7m = -21 + 7m + -7m Combine like terms: -3m + -7m = -10m -5 + -10m = -21 + 7m + -7m Combine like terms: 7m + -7m = 0 -5 + -10m = -21 + 0 -5 + -10m = -21 Add '5' to each side of the equation. -5 + 5 + -10m = -21 + 5 Combine like terms: -5 + 5 = 0 0 + -10m = -21 + 5 -10m = -21 + 5 Combine like terms: -21 + 5 = -16 -10m = -16 Divide each side by '-10'. m = 1.6 Simplifying m = 1.6
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