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Simplifying cos * 4x + -7cos * 2x + -8 = 0 Reorder the terms for easier multiplication: 4cos * x + -7cos * 2x + -8 = 0 Multiply cos * x 4cosx + -7cos * 2x + -8 = 0 Reorder the terms for easier multiplication: 4cosx + -7 * 2cos * x + -8 = 0 Multiply -7 * 2 4cosx + -14cos * x + -8 = 0 Multiply cos * x 4cosx + -14cosx + -8 = 0 Reorder the terms: -8 + 4cosx + -14cosx = 0 Combine like terms: 4cosx + -14cosx = -10cosx -8 + -10cosx = 0 Solving -8 + -10cosx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -10cosx = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -10cosx = 0 + 8 -10cosx = 0 + 8 Combine like terms: 0 + 8 = 8 -10cosx = 8 Divide each side by '-10osx'. c = -0.8o-1s-1x-1 Simplifying c = -0.8o-1s-1x-1
| 5x+13=-64-6x | | 3s+70=10s+14 | | -1=5/(x^2-1) | | 6c*7d= | | 6x+28=2x+144 | | (x+16)+(6x-4)=180 | | 6c/7d | | 8/3x-8/5x=32/15 | | (1/2)x-4=-3-(1/2)x | | 5r+1-6r=2 | | 10=(-10x-5)*2 | | f(x)=6e-3x | | 45y=20 | | -4n+8=-9n+43 | | 5a+4b+2a+9b= | | (2)(x^2+3x)=150 | | 26-3x=10-7x | | (x^2+3x)=150 | | X-8=7x+56 | | (3)(x^2+3x)=150 | | 228x-100= | | 3/(-7-x) | | 6(8x-4)= | | 100x-100x= | | R*9+295*X=21 | | 2(x^2+2x-3)=150 | | X^2-20x+1020=0 | | 10x(4x+12)=180 | | 6x+11=-52-3x | | (x-1)^1/3=5 | | X-.76=9.50 | | 2(x+3)(x-1)=150 |