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Simplifying -0.7(6 + -0.3n) = -2.1 (6 * -0.7 + -0.3n * -0.7) = -2.1 (-4.2 + 0.21n) = -2.1 Solving -4.2 + 0.21n = -2.1 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '4.2' to each side of the equation. -4.2 + 4.2 + 0.21n = -2.1 + 4.2 Combine like terms: -4.2 + 4.2 = 0.0 0.0 + 0.21n = -2.1 + 4.2 0.21n = -2.1 + 4.2 Combine like terms: -2.1 + 4.2 = 2.1 0.21n = 2.1 Divide each side by '0.21'. n = 10 Simplifying n = 10
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