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Simplifying 11X + -4X + -20 = 7X + 4 Reorder the terms: -20 + 11X + -4X = 7X + 4 Combine like terms: 11X + -4X = 7X -20 + 7X = 7X + 4 Reorder the terms: -20 + 7X = 4 + 7X Add '-7X' to each side of the equation. -20 + 7X + -7X = 4 + 7X + -7X Combine like terms: 7X + -7X = 0 -20 + 0 = 4 + 7X + -7X -20 = 4 + 7X + -7X Combine like terms: 7X + -7X = 0 -20 = 4 + 0 -20 = 4 Solving -20 = 4 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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