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