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Simplifying (-7y + 1) + -1(6y + -7) = -1 Reorder the terms: (1 + -7y) + -1(6y + -7) = -1 Remove parenthesis around (1 + -7y) 1 + -7y + -1(6y + -7) = -1 Reorder the terms: 1 + -7y + -1(-7 + 6y) = -1 1 + -7y + (-7 * -1 + 6y * -1) = -1 1 + -7y + (7 + -6y) = -1 Reorder the terms: 1 + 7 + -7y + -6y = -1 Combine like terms: 1 + 7 = 8 8 + -7y + -6y = -1 Combine like terms: -7y + -6y = -13y 8 + -13y = -1 Solving 8 + -13y = -1 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -13y = -1 + -8 Combine like terms: 8 + -8 = 0 0 + -13y = -1 + -8 -13y = -1 + -8 Combine like terms: -1 + -8 = -9 -13y = -9 Divide each side by '-13'. y = 0.6923076923 Simplifying y = 0.6923076923
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