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Simplifying 7(m + -3) = 42 Reorder the terms: 7(-3 + m) = 42 (-3 * 7 + m * 7) = 42 (-21 + 7m) = 42 Solving -21 + 7m = 42 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + 7m = 42 + 21 Combine like terms: -21 + 21 = 0 0 + 7m = 42 + 21 7m = 42 + 21 Combine like terms: 42 + 21 = 63 7m = 63 Divide each side by '7'. m = 9 Simplifying m = 9
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