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Simplifying sin(7x) = sin(x) Remove parenthesis around (7x) ins * 7x = sin(x) Reorder the terms for easier multiplication: 7ins * x = sin(x) Multiply ins * x 7insx = sin(x) Multiply ins * x 7insx = insx Solving 7insx = insx Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '-1insx' to each side of the equation. 7insx + -1insx = insx + -1insx Combine like terms: 7insx + -1insx = 6insx 6insx = insx + -1insx Combine like terms: insx + -1insx = 0 6insx = 0 Divide each side by '6'. insx = 0 Simplifying insx = 0 The solution to this equation could not be determined.
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