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Simplifying 7y + -9 = -30 + 4y Reorder the terms: -9 + 7y = -30 + 4y Solving -9 + 7y = -30 + 4y Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-4y' to each side of the equation. -9 + 7y + -4y = -30 + 4y + -4y Combine like terms: 7y + -4y = 3y -9 + 3y = -30 + 4y + -4y Combine like terms: 4y + -4y = 0 -9 + 3y = -30 + 0 -9 + 3y = -30 Add '9' to each side of the equation. -9 + 9 + 3y = -30 + 9 Combine like terms: -9 + 9 = 0 0 + 3y = -30 + 9 3y = -30 + 9 Combine like terms: -30 + 9 = -21 3y = -21 Divide each side by '3'. y = -7 Simplifying y = -7
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