If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying cos(7x) + cos(5x) = 2cos(6x)(0) Remove parenthesis around (7x) cos * 7x + cos(5x) = 2cos(6x)(0) Reorder the terms for easier multiplication: 7cos * x + cos(5x) = 2cos(6x)(0) Multiply cos * x 7cosx + cos(5x) = 2cos(6x)(0) Remove parenthesis around (5x) 7cosx + cos * 5x = 2cos(6x)(0) Reorder the terms for easier multiplication: 7cosx + 5cos * x = 2cos(6x)(0) Multiply cos * x 7cosx + 5cosx = 2cos(6x)(0) Combine like terms: 7cosx + 5cosx = 12cosx 12cosx = 2cos(6x)(0) Remove parenthesis around (6x) 12cosx = 2cos * 6x(0) Reorder the terms for easier multiplication: 12cosx = 2 * 6 * 0cos * x Multiply 2 * 6 12cosx = 12 * 0cos * x Multiply 12 * 0 12cosx = 0cos * x Anything times zero is zero. 12cosx = 0cos * x Solving 12cosx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Divide each side by '12'. cosx = 0 Simplifying cosx = 0 The solution to this equation could not be determined.
| 7-x= | | -114-2x=6x+10 | | x-6x=-10 | | -5z/7+12/7-3z/4=-8z/6+10/6 | | (c+7)(c-7)= | | 4x^3-10x-10=0 | | 5x+24=2x+75 | | -5z/7+12/7-3z/4=8z/6+10/6 | | -14-3x=7x-6 | | y=-8/9*8+8 | | 4w^2+25=10w+3w^2 | | 250=166-x | | 3x+2y-18=0 | | 9-9x=50-16x | | 5k-3=2k+6 | | 215+p-1001=-9412 | | -7=u-3 | | b-(-27)=30 | | y=-8/9(-0.8889)+8 | | m+(-38)=15 | | 4(x+12)-70=23-x | | (4t-5)(t+6)=-51 | | x^2+2*x-4=0 | | -35x=-105 | | 3x-7=-93-7x | | 52+18x=1,200 | | 3x-7=-93-4x | | b-(-27)=-30 | | 2*10+10y=20 | | (3x-9)(5x+9)=0 | | d-4=-12 | | 2x+19=81 |