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