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Simplifying x2 + 15X + -7 = 0 Reorder the terms: -7 + 15X + x2 = 0 Solving -7 + 15X + x2 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 15X + 7 + x2 = 0 + 7 Reorder the terms: -7 + 7 + 15X + x2 = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 15X + x2 = 0 + 7 15X + x2 = 0 + 7 Combine like terms: 0 + 7 = 7 15X + x2 = 7 Add '-1x2' to each side of the equation. 15X + x2 + -1x2 = 7 + -1x2 Combine like terms: x2 + -1x2 = 0 15X + 0 = 7 + -1x2 15X = 7 + -1x2 Divide each side by '15'. X = 0.4666666667 + -0.06666666667x2 Simplifying X = 0.4666666667 + -0.06666666667x2
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