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Simplifying 16 + -1(4 + -20x + 25x2) + 25(x2 + -6x + 9) = 13 + -130x 16 + (4 * -1 + -20x * -1 + 25x2 * -1) + 25(x2 + -6x + 9) = 13 + -130x 16 + (-4 + 20x + -25x2) + 25(x2 + -6x + 9) = 13 + -130x Reorder the terms: 16 + -4 + 20x + -25x2 + 25(9 + -6x + x2) = 13 + -130x 16 + -4 + 20x + -25x2 + (9 * 25 + -6x * 25 + x2 * 25) = 13 + -130x 16 + -4 + 20x + -25x2 + (225 + -150x + 25x2) = 13 + -130x Reorder the terms: 16 + -4 + 225 + 20x + -150x + -25x2 + 25x2 = 13 + -130x Combine like terms: 16 + -4 = 12 12 + 225 + 20x + -150x + -25x2 + 25x2 = 13 + -130x Combine like terms: 12 + 225 = 237 237 + 20x + -150x + -25x2 + 25x2 = 13 + -130x Combine like terms: 20x + -150x = -130x 237 + -130x + -25x2 + 25x2 = 13 + -130x Combine like terms: -25x2 + 25x2 = 0 237 + -130x + 0 = 13 + -130x 237 + -130x = 13 + -130x Add '130x' to each side of the equation. 237 + -130x + 130x = 13 + -130x + 130x Combine like terms: -130x + 130x = 0 237 + 0 = 13 + -130x + 130x 237 = 13 + -130x + 130x Combine like terms: -130x + 130x = 0 237 = 13 + 0 237 = 13 Solving 237 = 13 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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