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Simplifying 3 + -1(7) = 39 Multiply -1 * 7 3 + -7 = 39 Combine like terms: 3 + -7 = -4 -4 = 39 Solving -4 = 39 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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