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Simplifying 18.9 = 2.1xn Solving 18.9 = 2.1nx Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2.1nx' to each side of the equation. 18.9 + -2.1nx = 2.1nx + -2.1nx Combine like terms: 2.1nx + -2.1nx = 0.0 18.9 + -2.1nx = 0.0 Add '-18.9' to each side of the equation. 18.9 + -18.9 + -2.1nx = 0.0 + -18.9 Combine like terms: 18.9 + -18.9 = 0.0 0.0 + -2.1nx = 0.0 + -18.9 -2.1nx = 0.0 + -18.9 Combine like terms: 0.0 + -18.9 = -18.9 -2.1nx = -18.9 Divide each side by '-2.1x'. n = 9x-1 Simplifying n = 9x-1
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