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Simplifying 7x + -12 = x + 6(2 + x) Reorder the terms: -12 + 7x = x + 6(2 + x) -12 + 7x = x + (2 * 6 + x * 6) -12 + 7x = x + (12 + 6x) Reorder the terms: -12 + 7x = 12 + x + 6x Combine like terms: x + 6x = 7x -12 + 7x = 12 + 7x Add '-7x' to each side of the equation. -12 + 7x + -7x = 12 + 7x + -7x Combine like terms: 7x + -7x = 0 -12 + 0 = 12 + 7x + -7x -12 = 12 + 7x + -7x Combine like terms: 7x + -7x = 0 -12 = 12 + 0 -12 = 12 Solving -12 = 12 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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