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Simplifying 15x(x + -1x) = 85 Combine like terms: x + -1x = 0 15x(0) = 85 Reorder the terms for easier multiplication: 15 * 0x = 85 Multiply 15 * 0 0x = 85 Anything times zero is zero. 0x = 85 Solving 0 = 85 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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