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Simplifying n + -2.5n + -1.9 = -2(n + -1.3) Reorder the terms: -1.9 + n + -2.5n = -2(n + -1.3) Combine like terms: n + -2.5n = -1.5n -1.9 + -1.5n = -2(n + -1.3) Reorder the terms: -1.9 + -1.5n = -2(-1.3 + n) -1.9 + -1.5n = (-1.3 * -2 + n * -2) -1.9 + -1.5n = (2.6 + -2n) Solving -1.9 + -1.5n = 2.6 + -2n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '2n' to each side of the equation. -1.9 + -1.5n + 2n = 2.6 + -2n + 2n Combine like terms: -1.5n + 2n = 0.5n -1.9 + 0.5n = 2.6 + -2n + 2n Combine like terms: -2n + 2n = 0 -1.9 + 0.5n = 2.6 + 0 -1.9 + 0.5n = 2.6 Add '1.9' to each side of the equation. -1.9 + 1.9 + 0.5n = 2.6 + 1.9 Combine like terms: -1.9 + 1.9 = 0.0 0.0 + 0.5n = 2.6 + 1.9 0.5n = 2.6 + 1.9 Combine like terms: 2.6 + 1.9 = 4.5 0.5n = 4.5 Divide each side by '0.5'. n = 9 Simplifying n = 9
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