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Simplifying -1[-1[-1(-7x + -2y)]] + [-1[-1(2y + 7x)]] = 0 -1[-1[(-7x * -1 + -2y * -1)]] + [-1[-1(2y + 7x)]] = 0 -1[-1[(7x + 2y)]] + [-1[-1(2y + 7x)]] = 0 -1[[7x * -1 + 2y * -1]] + [-1[-1(2y + 7x)]] = 0 -1[[-7x + -2y]] + [-1[-1(2y + 7x)]] = 0 [-7x * -1 + -2y * -1] + [-1[-1(2y + 7x)]] = 0 [7x + 2y] + [-1[-1(2y + 7x)]] = 0 Reorder the terms: 7x + 2y + [-1[-1(7x + 2y)]] = 0 7x + 2y + [-1[(7x * -1 + 2y * -1)]] = 0 7x + 2y + [-1[(-7x + -2y)]] = 0 7x + 2y + [[-7x * -1 + -2y * -1]] = 0 7x + 2y + [[7x + 2y]] = 0 7x + 2y + [7x + 2y] = 0 Remove brackets around [7x + 2y] 7x + 2y + 7x + 2y = 0 Reorder the terms: 7x + 7x + 2y + 2y = 0 Combine like terms: 7x + 7x = 14x 14x + 2y + 2y = 0 Combine like terms: 2y + 2y = 4y 14x + 4y = 0 Solving 14x + 4y = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4y' to each side of the equation. 14x + 4y + -4y = 0 + -4y Combine like terms: 4y + -4y = 0 14x + 0 = 0 + -4y 14x = 0 + -4y Remove the zero: 14x = -4y Divide each side by '14'. x = -0.2857142857y Simplifying x = -0.2857142857y
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