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Simplifying -7(3m + 6) = -126 Reorder the terms: -7(6 + 3m) = -126 (6 * -7 + 3m * -7) = -126 (-42 + -21m) = -126 Solving -42 + -21m = -126 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '42' to each side of the equation. -42 + 42 + -21m = -126 + 42 Combine like terms: -42 + 42 = 0 0 + -21m = -126 + 42 -21m = -126 + 42 Combine like terms: -126 + 42 = -84 -21m = -84 Divide each side by '-21'. m = 4 Simplifying m = 4
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