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Simplifying cos * 2x + 3cos * x + 2 = 0 Reorder the terms for easier multiplication: 2cos * x + 3cos * x + 2 = 0 Multiply cos * x 2cosx + 3cos * x + 2 = 0 Multiply cos * x 2cosx + 3cosx + 2 = 0 Reorder the terms: 2 + 2cosx + 3cosx = 0 Combine like terms: 2cosx + 3cosx = 5cosx 2 + 5cosx = 0 Solving 2 + 5cosx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 5cosx = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 5cosx = 0 + -2 5cosx = 0 + -2 Combine like terms: 0 + -2 = -2 5cosx = -2 Divide each side by '5osx'. c = -0.4o-1s-1x-1 Simplifying c = -0.4o-1s-1x-1
| 18+2x+0.666x=4 | | 2x+3(4x-14)=112 | | 6x+3x+7.3=5+35.2 | | 4y+x=5(2x-y) | | 6x+4(-4x-14)=-176 | | 5m^2-50m=0 | | 4x+3(-3x+13)=89 | | 7+(-5)=12 | | 0=0.3*4180*(t-20)+0.1*385*(t-400) | | x-3x+5=3x-0.5 | | 2x+3*2=5x+4 | | x-3x+5=3x-1 | | 5m(2m^2-n^3)= | | (5n-18)+(2n+12)=180 | | 3+5x=x+15 | | (4x-1)(x-9)=0 | | -3(m+4)=4 | | y=(7x+9)(x-1) | | 105=-3x+5(-3x+3) | | 7m-3m+4=16 | | 5lnx=30 | | 18y=12-12x | | =2500-2x | | 7x-6=3(x^6) | | (12x+10)-(-4x-6x+10)= | | 6[-6x+6+4x(x+1)]=6x+2 | | 0.5x+0.25=x | | 3x+3(5x-10)=138 | | (2mn+8m^2n-5n+6m)= | | 0=(t-20)+(t-400) | | 8.57x+17.14=34.28 | | t-20=t-400 |