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Simplifying 2x + -4(x + -5) = 4 + -2x Reorder the terms: 2x + -4(-5 + x) = 4 + -2x 2x + (-5 * -4 + x * -4) = 4 + -2x 2x + (20 + -4x) = 4 + -2x Reorder the terms: 20 + 2x + -4x = 4 + -2x Combine like terms: 2x + -4x = -2x 20 + -2x = 4 + -2x Add '2x' to each side of the equation. 20 + -2x + 2x = 4 + -2x + 2x Combine like terms: -2x + 2x = 0 20 + 0 = 4 + -2x + 2x 20 = 4 + -2x + 2x Combine like terms: -2x + 2x = 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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