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Simplifying 7x2 + 2 = 15 Reorder the terms: 2 + 7x2 = 15 Solving 2 + 7x2 = 15 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 7x2 = 15 + -2 Combine like terms: 2 + -2 = 0 0 + 7x2 = 15 + -2 7x2 = 15 + -2 Combine like terms: 15 + -2 = 13 7x2 = 13 Divide each side by '7'. x2 = 1.857142857 Simplifying x2 = 1.857142857 Take the square root of each side: x = {-1.362770288, 1.362770288}
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