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Simplifying 2cos(3x) + -3cos(3x) + 1 = 0 Remove parenthesis around (3x) 2cos * 3x + -3cos(3x) + 1 = 0 Reorder the terms for easier multiplication: 2 * 3cos * x + -3cos(3x) + 1 = 0 Multiply 2 * 3 6cos * x + -3cos(3x) + 1 = 0 Multiply cos * x 6cosx + -3cos(3x) + 1 = 0 Remove parenthesis around (3x) 6cosx + -3cos * 3x + 1 = 0 Reorder the terms for easier multiplication: 6cosx + -3 * 3cos * x + 1 = 0 Multiply -3 * 3 6cosx + -9cos * x + 1 = 0 Multiply cos * x 6cosx + -9cosx + 1 = 0 Reorder the terms: 1 + 6cosx + -9cosx = 0 Combine like terms: 6cosx + -9cosx = -3cosx 1 + -3cosx = 0 Solving 1 + -3cosx = 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 + -3cosx = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3cosx = 0 + -1 -3cosx = 0 + -1 Combine like terms: 0 + -1 = -1 -3cosx = -1 Divide each side by '-3osx'. c = 0.3333333333o-1s-1x-1 Simplifying c = 0.3333333333o-1s-1x-1
| 6w-2=2(w-5) | | 5x-4(1-x)=-7 | | 6(y-5)=8y-34 | | 15t=3.30 | | -3v-12=-9(v-4) | | -4x-2(8x-1)=-1(-2x-10) | | 38=3w+7(w-6) | | F+7-15=2 | | 6x+5(x+2)=32 | | 4(5x-2)=(9x+3) | | 6(u-2)-3u=-30 | | x=(120-y) | | x=120y | | 10+v-24=2 | | 8(v+4)+6=2v-5 | | 3(w-4)-7=-24 | | 10x+3=4(2x+1)-2 | | (Y+3)(y-5)= | | 10+2y=13 | | -20+y=4 | | 51=u/3 | | -0.5x^2-4x+300=0.5x^2-2x+76 | | 8a+6=14+7a | | 7(v+5)+3=2v-11 | | -4*(x-6)=20 | | 224=x^2+2x | | x^2/2=112 | | x^2/x=112 | | -12=-1.5k | | 132.22+.22= | | -0.25k=-2.5 | | 2sin[x]+2cos[x]=0 |