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Simplifying 7x + 8 = 7(x + -7) Reorder the terms: 8 + 7x = 7(x + -7) Reorder the terms: 8 + 7x = 7(-7 + x) 8 + 7x = (-7 * 7 + x * 7) 8 + 7x = (-49 + 7x) Add '-7x' to each side of the equation. 8 + 7x + -7x = -49 + 7x + -7x Combine like terms: 7x + -7x = 0 8 + 0 = -49 + 7x + -7x 8 = -49 + 7x + -7x Combine like terms: 7x + -7x = 0 8 = -49 + 0 8 = -49 Solving 8 = -49 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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