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Simplifying 8x + 7 = 8(x + -9) Reorder the terms: 7 + 8x = 8(x + -9) Reorder the terms: 7 + 8x = 8(-9 + x) 7 + 8x = (-9 * 8 + x * 8) 7 + 8x = (-72 + 8x) Add '-8x' to each side of the equation. 7 + 8x + -8x = -72 + 8x + -8x Combine like terms: 8x + -8x = 0 7 + 0 = -72 + 8x + -8x 7 = -72 + 8x + -8x Combine like terms: 8x + -8x = 0 7 = -72 + 0 7 = -72 Solving 7 = -72 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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