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Simplifying (x + -13)(x + -13) + (y)(y) = 169 Reorder the terms: (-13 + x)(x + -13) + (y)(y) = 169 Reorder the terms: (-13 + x)(-13 + x) + (y)(y) = 169 Multiply (-13 + x) * (-13 + x) (-13(-13 + x) + x(-13 + x)) + (y)(y) = 169 ((-13 * -13 + x * -13) + x(-13 + x)) + (y)(y) = 169 ((169 + -13x) + x(-13 + x)) + (y)(y) = 169 (169 + -13x + (-13 * x + x * x)) + (y)(y) = 169 (169 + -13x + (-13x + x2)) + (y)(y) = 169 Combine like terms: -13x + -13x = -26x (169 + -26x + x2) + (y)(y) = 169 Multiply y * y 169 + -26x + x2 + y2 = 169 Add '-169' to each side of the equation. 169 + -26x + x2 + -169 + y2 = 169 + -169 Reorder the terms: 169 + -169 + -26x + x2 + y2 = 169 + -169 Combine like terms: 169 + -169 = 0 0 + -26x + x2 + y2 = 169 + -169 -26x + x2 + y2 = 169 + -169 Combine like terms: 169 + -169 = 0 -26x + x2 + y2 = 0 Solving -26x + x2 + y2 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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