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Simplifying 12 + 8x = (8(x + 1)) + 7 Reorder the terms: 12 + 8x = (8(1 + x)) + 7 12 + 8x = ((1 * 8 + x * 8)) + 7 12 + 8x = ((8 + 8x)) + 7 12 + 8x = (8 + 8x) + 7 Remove parenthesis around (8 + 8x) 12 + 8x = 8 + 8x + 7 Reorder the terms: 12 + 8x = 8 + 7 + 8x Combine like terms: 8 + 7 = 15 12 + 8x = 15 + 8x Add '-8x' to each side of the equation. 12 + 8x + -8x = 15 + 8x + -8x Combine like terms: 8x + -8x = 0 12 + 0 = 15 + 8x + -8x 12 = 15 + 8x + -8x Combine like terms: 8x + -8x = 0 12 = 15 + 0 12 = 15 Solving 12 = 15 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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