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Simplifying 42 = (y + 7) Reorder the terms: 42 = (7 + y) Remove parenthesis around (7 + y) 42 = 7 + y Solving 42 = 7 + 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. 42 + -1y = 7 + y + -1y Combine like terms: y + -1y = 0 42 + -1y = 7 + 0 42 + -1y = 7 Add '-42' to each side of the equation. 42 + -42 + -1y = 7 + -42 Combine like terms: 42 + -42 = 0 0 + -1y = 7 + -42 -1y = 7 + -42 Combine like terms: 7 + -42 = -35 -1y = -35 Divide each side by '-1'. y = 35 Simplifying y = 35
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