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Simplifying 7y + -2 = 21y + 21 Reorder the terms: -2 + 7y = 21y + 21 Reorder the terms: -2 + 7y = 21 + 21y Solving -2 + 7y = 21 + 21y Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-21y' to each side of the equation. -2 + 7y + -21y = 21 + 21y + -21y Combine like terms: 7y + -21y = -14y -2 + -14y = 21 + 21y + -21y Combine like terms: 21y + -21y = 0 -2 + -14y = 21 + 0 -2 + -14y = 21 Add '2' to each side of the equation. -2 + 2 + -14y = 21 + 2 Combine like terms: -2 + 2 = 0 0 + -14y = 21 + 2 -14y = 21 + 2 Combine like terms: 21 + 2 = 23 -14y = 23 Divide each side by '-14'. y = -1.642857143 Simplifying y = -1.642857143
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