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Simplifying 3y + 20 = y + 30 Reorder the terms: 20 + 3y = y + 30 Reorder the terms: 20 + 3y = 30 + y Solving 20 + 3y = 30 + y Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-1y' to each side of the equation. 20 + 3y + -1y = 30 + y + -1y Combine like terms: 3y + -1y = 2y 20 + 2y = 30 + y + -1y Combine like terms: y + -1y = 0 20 + 2y = 30 + 0 20 + 2y = 30 Add '-20' to each side of the equation. 20 + -20 + 2y = 30 + -20 Combine like terms: 20 + -20 = 0 0 + 2y = 30 + -20 2y = 30 + -20 Combine like terms: 30 + -20 = 10 2y = 10 Divide each side by '2'. y = 5 Simplifying y = 5
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