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Simplifying -4(2 + -1y) + 3y = 7(y + -4) (2 * -4 + -1y * -4) + 3y = 7(y + -4) (-8 + 4y) + 3y = 7(y + -4) Combine like terms: 4y + 3y = 7y -8 + 7y = 7(y + -4) Reorder the terms: -8 + 7y = 7(-4 + y) -8 + 7y = (-4 * 7 + y * 7) -8 + 7y = (-28 + 7y) Add '-7y' to each side of the equation. -8 + 7y + -7y = -28 + 7y + -7y Combine like terms: 7y + -7y = 0 -8 + 0 = -28 + 7y + -7y -8 = -28 + 7y + -7y Combine like terms: 7y + -7y = 0 -8 = -28 + 0 -8 = -28 Solving -8 = -28 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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