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Simplifying 5 + x + 7x = 4(2x + 1) Combine like terms: x + 7x = 8x 5 + 8x = 4(2x + 1) Reorder the terms: 5 + 8x = 4(1 + 2x) 5 + 8x = (1 * 4 + 2x * 4) 5 + 8x = (4 + 8x) Add '-8x' to each side of the equation. 5 + 8x + -8x = 4 + 8x + -8x Combine like terms: 8x + -8x = 0 5 + 0 = 4 + 8x + -8x 5 = 4 + 8x + -8x Combine like terms: 8x + -8x = 0 5 = 4 + 0 5 = 4 Solving 5 = 4 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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