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Simplifying 2cos(5x) + -1 = 0 Remove parenthesis around (5x) 2cos * 5x + -1 = 0 Reorder the terms for easier multiplication: 2 * 5cos * x + -1 = 0 Multiply 2 * 5 10cos * x + -1 = 0 Multiply cos * x 10cosx + -1 = 0 Reorder the terms: -1 + 10cosx = 0 Solving -1 + 10cosx = 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 + 10cosx = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 10cosx = 0 + 1 10cosx = 0 + 1 Combine like terms: 0 + 1 = 1 10cosx = 1 Divide each side by '10osx'. c = 0.1o-1s-1x-1 Simplifying c = 0.1o-1s-1x-1
| 5k-[2k+(-5+2k)]= | | -42+(-49)= | | 7x-5y=-42 | | 6.1x-3.8=14.5 | | -[6x+(7x+8)]=1-(4x+1) | | x/8-3=-7 | | 27x3/4=125 | | 4(4x^2+2x+1)=0 | | (2x-7)+117=180 | | -0.3x-0.4x+9=2 | | 6(5z-1)-(5z+8)=11(z+1) | | -x+8=29 | | 1.1x=7.81 | | -4.8=6.1+y | | .7(4X+8)=1.2-(X+2) | | d/9=9 | | 3a+2b-2(8a-5b)= | | 5X^2+10x-4940=0 | | 20/30=x/25 | | Domainf(x)=ln(-6x) | | 8(8x+15)=24 | | 5X^2+10x+60=0 | | 12/18=x/30 | | 5x^2+10x-60=0 | | (2x+4)(10x-5)= | | 0.18x+0.6(x-1)=0.01(3x-2) | | 0.40x+0.05(8-x)=0.10(-31) | | F(x)=ln(-6x) | | 1.8c=65.7 | | 3p-8=-5(1-u) | | x(2x-3)+x(5x-5)=(7x+8)(x-2) | | 2x2/3=128 |