3cos(2x)=cosx+2

Simple and best practice solution for 3cos(2x)=cosx+2 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 3cos(2x)=cosx+2 equation:


Simplifying
3cos(2x) = cosx + 2

Remove parenthesis around (2x)
3cos * 2x = cosx + 2

Reorder the terms for easier multiplication:
3 * 2cos * x = cosx + 2

Multiply 3 * 2
6cos * x = cosx + 2

Multiply cos * x
6cosx = cosx + 2

Reorder the terms:
6cosx = 2 + cosx

Solving
6cosx = 2 + cosx

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Add '-1cosx' to each side of the equation.
6cosx + -1cosx = 2 + cosx + -1cosx

Combine like terms: 6cosx + -1cosx = 5cosx
5cosx = 2 + cosx + -1cosx

Combine like terms: cosx + -1cosx = 0
5cosx = 2 + 0
5cosx = 2

Divide each side by '5osx'.
c = 0.4o-1s-1x-1

Simplifying
c = 0.4o-1s-1x-1

See similar equations:

| 6t-7(3y+4)=6 | | 31+n=54 | | 8x-4=5x+17 | | 8-(3z-7)=9-4z | | 26=2(2x+5)+2x | | X-25=1/5x | | 6.8a-7(3y+4)=0 | | .5(10m+40)=100 | | 5(2r+12)=6(5r-10) | | 4m-4=m+8 | | 26=3y+2-9 | | -2x/12-5/6=0 | | 3(3p+2)=60 | | 7+10-20=x | | 3x-10y=12 | | 3x+4=13+-4 | | -3(4x+3)=4(6x+1)+43 | | 8/9k=-24 | | 0.50x+0.20(70)=0.40(x+70) | | -2s-6s=-29 | | 6(w-1)-3(2+w)=9 | | 2x(x+25-10)-2=y | | 3c+6d=18 | | -1(1+7a)-6(7-a)=36 | | 35=5y-55 | | 2(9)+18=36-36 | | 1/4×n=40 | | f(x)=-(-x^3) | | 13=4(-7r-5)-2r | | 5(w+1)=5w-4 | | 15x+12y-36=0 | | y=5y-55 |

Equations solver categories