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