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Simplifying 8x + -28 = x + 7(4 + x) Reorder the terms: -28 + 8x = x + 7(4 + x) -28 + 8x = x + (4 * 7 + x * 7) -28 + 8x = x + (28 + 7x) Reorder the terms: -28 + 8x = 28 + x + 7x Combine like terms: x + 7x = 8x -28 + 8x = 28 + 8x Add '-8x' to each side of the equation. -28 + 8x + -8x = 28 + 8x + -8x Combine like terms: 8x + -8x = 0 -28 + 0 = 28 + 8x + -8x -28 = 28 + 8x + -8x Combine like terms: 8x + -8x = 0 -28 = 28 + 0 -28 = 28 Solving -28 = 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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