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Simplifying cos(2x) + -7cosx + 6 = 0 Remove parenthesis around (2x) cos * 2x + -7cosx + 6 = 0 Reorder the terms for easier multiplication: 2cos * x + -7cosx + 6 = 0 Multiply cos * x 2cosx + -7cosx + 6 = 0 Reorder the terms: 6 + 2cosx + -7cosx = 0 Combine like terms: 2cosx + -7cosx = -5cosx 6 + -5cosx = 0 Solving 6 + -5cosx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -5cosx = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -5cosx = 0 + -6 -5cosx = 0 + -6 Combine like terms: 0 + -6 = -6 -5cosx = -6 Divide each side by '-5osx'. c = 1.2o-1s-1x-1 Simplifying c = 1.2o-1s-1x-1
| (180-x)3=x | | w^6=1 | | (3x^2)+105x=600 | | 4(3x+3)-15x= | | xy+4x+8=224 | | 4p+1= | | 21+4y=54-7y | | y^2+6y+3x-3=0 | | 9/x-1(5x-5/27) | | (3x^2)+75x=450 | | 32w^6-32=0 | | 4x^6+8x^4+7x^2+2=2 | | 4x^6+8x^4+7x^2+2=0 | | 15-190= | | 190-15= | | 190-14= | | I-9m-9=9 | | (2cosx-1)(sinx-1)=0 | | 1/2-(-3) | | 5/9×2/5 | | y=max+bforx | | 3(2y+3x)-4y=-3 | | 4y+2x=19 | | 7x^3-x+6=0 | | 2x+28=180 | | 10x+1=289-x^2 | | 2+y+9=14 | | X^2+15x-10=24 | | 3x-57=180 | | y-2x+2=7 | | (n-2)180=4140 | | (n-2)180=6120 |