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Simplifying Sin(x + -20) + cos(x + 70) = 0 Reorder the terms: inS(-20 + x) + cos(x + 70) = 0 (-20 * inS + x * inS) + cos(x + 70) = 0 (-20inS + inxS) + cos(x + 70) = 0 Reorder the terms: -20inS + inxS + cos(70 + x) = 0 -20inS + inxS + (70 * cos + x * cos) = 0 -20inS + inxS + (70cos + cosx) = 0 Reorder the terms: 70cos + cosx + -20inS + inxS = 0 Solving 70cos + cosx + -20inS + inxS = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '20inS' to each side of the equation. 70cos + cosx + -20inS + 20inS + inxS = 0 + 20inS Combine like terms: -20inS + 20inS = 0 70cos + cosx + 0 + inxS = 0 + 20inS 70cos + cosx + inxS = 0 + 20inS Remove the zero: 70cos + cosx + inxS = 20inS Add '-1inxS' to each side of the equation. 70cos + cosx + inxS + -1inxS = 20inS + -1inxS Combine like terms: inxS + -1inxS = 0 70cos + cosx + 0 = 20inS + -1inxS 70cos + cosx = 20inS + -1inxS Reorder the terms: 70cos + cosx + -20inS + inxS = 20inS + -20inS + -1inxS + inxS Combine like terms: 20inS + -20inS = 0 70cos + cosx + -20inS + inxS = 0 + -1inxS + inxS 70cos + cosx + -20inS + inxS = -1inxS + inxS Combine like terms: -1inxS + inxS = 0 70cos + cosx + -20inS + inxS = 0 The solution to this equation could not be determined.
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