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Simplifying y + 5 = 7y + -21 Reorder the terms: 5 + y = 7y + -21 Reorder the terms: 5 + y = -21 + 7y Solving 5 + y = -21 + 7y Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-7y' to each side of the equation. 5 + y + -7y = -21 + 7y + -7y Combine like terms: y + -7y = -6y 5 + -6y = -21 + 7y + -7y Combine like terms: 7y + -7y = 0 5 + -6y = -21 + 0 5 + -6y = -21 Add '-5' to each side of the equation. 5 + -5 + -6y = -21 + -5 Combine like terms: 5 + -5 = 0 0 + -6y = -21 + -5 -6y = -21 + -5 Combine like terms: -21 + -5 = -26 -6y = -26 Divide each side by '-6'. y = 4.333333333 Simplifying y = 4.333333333
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