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Simplifying 4 = 7 + y Solving 4 = 7 + y Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-1y' to each side of the equation. 4 + -1y = 7 + y + -1y Combine like terms: y + -1y = 0 4 + -1y = 7 + 0 4 + -1y = 7 Add '-4' to each side of the equation. 4 + -4 + -1y = 7 + -4 Combine like terms: 4 + -4 = 0 0 + -1y = 7 + -4 -1y = 7 + -4 Combine like terms: 7 + -4 = 3 -1y = 3 Divide each side by '-1'. y = -3 Simplifying y = -3
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