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Simplifying 7m + 15 = 12m + -20 Reorder the terms: 15 + 7m = 12m + -20 Reorder the terms: 15 + 7m = -20 + 12m Solving 15 + 7m = -20 + 12m Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-12m' to each side of the equation. 15 + 7m + -12m = -20 + 12m + -12m Combine like terms: 7m + -12m = -5m 15 + -5m = -20 + 12m + -12m Combine like terms: 12m + -12m = 0 15 + -5m = -20 + 0 15 + -5m = -20 Add '-15' to each side of the equation. 15 + -15 + -5m = -20 + -15 Combine like terms: 15 + -15 = 0 0 + -5m = -20 + -15 -5m = -20 + -15 Combine like terms: -20 + -15 = -35 -5m = -35 Divide each side by '-5'. m = 7 Simplifying m = 7
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