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Simplifying cos(2x) + -5cos(x) + 3 = 0 Remove parenthesis around (2x) cos * 2x + -5cos(x) + 3 = 0 Reorder the terms for easier multiplication: 2cos * x + -5cos(x) + 3 = 0 Multiply cos * x 2cosx + -5cos(x) + 3 = 0 Multiply cos * x 2cosx + -5cosx + 3 = 0 Reorder the terms: 3 + 2cosx + -5cosx = 0 Combine like terms: 2cosx + -5cosx = -3cosx 3 + -3cosx = 0 Solving 3 + -3cosx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -3cosx = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -3cosx = 0 + -3 -3cosx = 0 + -3 Combine like terms: 0 + -3 = -3 -3cosx = -3 Divide each side by '-3osx'. c = o-1s-1x-1 Simplifying c = o-1s-1x-1
| 5n+36=101 | | 24=6n-78 | | x^3-21x+56=0 | | 4x-7=11+6 | | 4b+7c= | | -5ab+3ab= | | 8y-4(y-5)=4 | | 7+4y=-5 | | 4x-7=9x+11 | | 6X^2+4X-4=66 | | (2-4x)-(3-4x)+4=(-3+6x)+x | | 2[-(x-1)+4]=5+[3(2x-4)-3x] | | t+2=5 | | 8x^2+10xy-63y^2=0 | | 4x^2+16xy+7y^2=0 | | 15+(3x-2)=(15+3x)-2 | | 4.5(0.1p-0.2)+p=12.1065 | | 4008=233d+12 | | 17-5x=11-7x | | 9+8x=16+x | | x^2=9-y^2 | | 2-2x-10=6x+4 | | -7(2t+7)=-119t | | -7(2t+7)=119t | | 5(f-9)=-50 | | -10(s+5)=25 | | 12x^2-59xy+72y^2=0 | | -4(2t+7)=-52 | | 3(f-10)=-21 | | -10(s+2)=43 | | 3x^3=4x+11 | | 2(4s+10)=116 |