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Simplifying 5 + -4(x + 7) = -4x + -18 Reorder the terms: 5 + -4(7 + x) = -4x + -18 5 + (7 * -4 + x * -4) = -4x + -18 5 + (-28 + -4x) = -4x + -18 Combine like terms: 5 + -28 = -23 -23 + -4x = -4x + -18 Reorder the terms: -23 + -4x = -18 + -4x Add '4x' to each side of the equation. -23 + -4x + 4x = -18 + -4x + 4x Combine like terms: -4x + 4x = 0 -23 + 0 = -18 + -4x + 4x -23 = -18 + -4x + 4x Combine like terms: -4x + 4x = 0 -23 = -18 + 0 -23 = -18 Solving -23 = -18 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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