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