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Simplifying 15 + -1(6 + -7x) = 2 + 7x 15 + (6 * -1 + -7x * -1) = 2 + 7x 15 + (-6 + 7x) = 2 + 7x Combine like terms: 15 + -6 = 9 9 + 7x = 2 + 7x Add '-7x' to each side of the equation. 9 + 7x + -7x = 2 + 7x + -7x Combine like terms: 7x + -7x = 0 9 + 0 = 2 + 7x + -7x 9 = 2 + 7x + -7x Combine like terms: 7x + -7x = 0 9 = 2 + 0 9 = 2 Solving 9 = 2 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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