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Simplifying cos(2x) + 7sinx + 3 = 0 Remove parenthesis around (2x) cos * 2x + 7sinx + 3 = 0 Reorder the terms for easier multiplication: 2cos * x + 7sinx + 3 = 0 Multiply cos * x 2cosx + 7sinx + 3 = 0 Reorder the terms: 3 + 2cosx + 7insx = 0 Solving 3 + 2cosx + 7insx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + 2cosx + -3 + 7insx = 0 + -3 Reorder the terms: 3 + -3 + 2cosx + 7insx = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2cosx + 7insx = 0 + -3 2cosx + 7insx = 0 + -3 Combine like terms: 0 + -3 = -3 2cosx + 7insx = -3 Add '-7insx' to each side of the equation. 2cosx + 7insx + -7insx = -3 + -7insx Combine like terms: 7insx + -7insx = 0 2cosx + 0 = -3 + -7insx 2cosx = -3 + -7insx Divide each side by '2osx'. c = -1.5o-1s-1x-1 + -3.5ino-1 Simplifying c = -1.5o-1s-1x-1 + -3.5ino-1 Reorder the terms: c = -3.5ino-1 + -1.5o-1s-1x-1
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