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Simplifying 7(1 + -1x2) = 55 (1 * 7 + -1x2 * 7) = 55 (7 + -7x2) = 55 Solving 7 + -7x2 = 55 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 + -7 + -7x2 = 55 + -7 Combine like terms: 7 + -7 = 0 0 + -7x2 = 55 + -7 -7x2 = 55 + -7 Combine like terms: 55 + -7 = 48 -7x2 = 48 Divide each side by '-7'. x2 = -6.857142857 Simplifying x2 = -6.857142857 Reorder the terms: 6.857142857 + x2 = -6.857142857 + 6.857142857 Combine like terms: -6.857142857 + 6.857142857 = 0.000000000 6.857142857 + x2 = 0.000000000 The solution to this equation could not be determined.
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