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Simplifying 6cos(15x) + 3 = 4cos(15x) + 4 Remove parenthesis around (15x) 6cos * 15x + 3 = 4cos(15x) + 4 Reorder the terms for easier multiplication: 6 * 15cos * x + 3 = 4cos(15x) + 4 Multiply 6 * 15 90cos * x + 3 = 4cos(15x) + 4 Multiply cos * x 90cosx + 3 = 4cos(15x) + 4 Reorder the terms: 3 + 90cosx = 4cos(15x) + 4 Remove parenthesis around (15x) 3 + 90cosx = 4cos * 15x + 4 Reorder the terms for easier multiplication: 3 + 90cosx = 4 * 15cos * x + 4 Multiply 4 * 15 3 + 90cosx = 60cos * x + 4 Multiply cos * x 3 + 90cosx = 60cosx + 4 Reorder the terms: 3 + 90cosx = 4 + 60cosx Solving 3 + 90cosx = 4 + 60cosx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-60cosx' to each side of the equation. 3 + 90cosx + -60cosx = 4 + 60cosx + -60cosx Combine like terms: 90cosx + -60cosx = 30cosx 3 + 30cosx = 4 + 60cosx + -60cosx Combine like terms: 60cosx + -60cosx = 0 3 + 30cosx = 4 + 0 3 + 30cosx = 4 Add '-3' to each side of the equation. 3 + -3 + 30cosx = 4 + -3 Combine like terms: 3 + -3 = 0 0 + 30cosx = 4 + -3 30cosx = 4 + -3 Combine like terms: 4 + -3 = 1 30cosx = 1 Divide each side by '30osx'. c = 0.03333333333o-1s-1x-1 Simplifying c = 0.03333333333o-1s-1x-1
| 8x+13x^2-15= | | 0.4r=0.48 | | 25-(3c+4)=2(c+6)+c | | 14(5)-10(7)=140 | | 5+7=12 | | 50+4X=15X | | 7=0.8l+1.5 | | Kx(x)=0 | | -5(9)-3(5)=12 | | 45x-6753=103847282 | | -5(6)-3(4)=12 | | 12x=4y+6 | | -3-3(1)=12 | | lny=10 | | 3.4-2x=1 | | 7c-.75=2.80 | | -5(-3)-3(1)=12 | | 4.3z-3.3z+8.5=1.7-1.6 | | x(x-5)-28=x^2+30x-68 | | -5(3)-3(-3)=12 | | 18x^4-48x^2-96=0 | | 3m+9+11=2 | | 2-3(-3)=11 | | 77y=19(4y+9) | | 2+-3=-1 | | 8x-4-60=180 | | 6-2x^2=6 | | 50=5+10 | | 10v+4=170 | | 20n-4=60 | | x^3+12x-12=0 | | c=8(3.14)g |