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Simplifying 3cos(2x) + -5cos(x) + -1 = 0 Remove parenthesis around (2x) 3cos * 2x + -5cos(x) + -1 = 0 Reorder the terms for easier multiplication: 3 * 2cos * x + -5cos(x) + -1 = 0 Multiply 3 * 2 6cos * x + -5cos(x) + -1 = 0 Multiply cos * x 6cosx + -5cos(x) + -1 = 0 Multiply cos * x 6cosx + -5cosx + -1 = 0 Reorder the terms: -1 + 6cosx + -5cosx = 0 Combine like terms: 6cosx + -5cosx = 1cosx -1 + 1cosx = 0 Solving -1 + 1cosx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + 1cosx = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 1cosx = 0 + 1 1cosx = 0 + 1 Combine like terms: 0 + 1 = 1 1cosx = 1 Divide each side by '1osx'. c = o-1s-1x-1 Simplifying c = o-1s-1x-1
| 4(x-1)=19 | | 5(x-3)+7=4x | | 5(x-3)+7=12 | | 4z-1=5 | | 5(n+3)+8(n+3)= | | y=-0.25x^2+6 | | -(z+9)+(2z+1)=2(z+1) | | 16x+96x+141=0 | | 7.4x-3.4=4.0 | | 7.21x^3-9x^2-27x-27=0 | | 10x-360/20-x-1/20=4,55 | | Y=0.5cosx | | 6x+5+15=180 | | -abx+2abx= | | 6x-5+15=180 | | 6x+3x-5+12+2x-60=0 | | x/8*11=3/44 | | 6x^4-3x^3+7x^2-13x+6=0 | | 3cosx=0.25 | | 3cos=0.25 | | 12x^3=11x | | 8x(2)-18x=0 | | 3cosx-0.25=0 | | 8x-5=3(x-7) | | (1+y)dx+(1-X)dy=0 | | 2(3x-2)-5=2 | | 3(4-5s)=30 | | 4b-4+2b=32 | | 12x+24(2x)+3(4x)=504 | | b+0.6b=6.4 | | 3(3x-2)=60 | | 3+6a=2a+27 |