7cos(2x)+2=0

Simple and best practice solution for 7cos(2x)+2=0 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 7cos(2x)+2=0 equation:


Simplifying
7cos(2x) + 2 = 0

Remove parenthesis around (2x)
7cos * 2x + 2 = 0

Reorder the terms for easier multiplication:
7 * 2cos * x + 2 = 0

Multiply 7 * 2
14cos * x + 2 = 0

Multiply cos * x
14cosx + 2 = 0

Reorder the terms:
2 + 14cosx = 0

Solving
2 + 14cosx = 0

Solving for variable 'c'.

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

Add '-2' to each side of the equation.
2 + -2 + 14cosx = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 14cosx = 0 + -2
14cosx = 0 + -2

Combine like terms: 0 + -2 = -2
14cosx = -2

Divide each side by '14osx'.
c = -0.1428571429o-1s-1x-1

Simplifying
c = -0.1428571429o-1s-1x-1

See similar equations:

| 8+5(4)= | | 5+x=x-5 | | x+30+x+30=110 | | 16*17/(16*17) | | 15(t+4)+3t=6(3t+4)-10 | | 4(x+7)-28=-2(x-4)+40 | | 9y^2+8y-20=0 | | .05x+.08(-x+20000)=1090 | | x=(-2x+5y)/(4+3y) | | -3/11/(-3/11) | | 5x-9x=x+3 | | -12.6/(-2) | | -5*(-8)= | | -3(4s-6)-18=-3(7s+0)-5 | | 4y^2-5y-21=0 | | 4x^3+3x^2-9x-3=0 | | 4m-19=-29+9m | | 6x+13=-131 | | .09x+.08(-x+20000)=1620 | | 6(5z+1)=6 | | z-1/17=0 | | b^2+2b+9b+18= | | 3(5x-15)=(15x-3) | | (-9/16)/(16/-9) | | -4/11y=20 | | -120/6 | | x^2-26x-7=0 | | 23+8/(-12)*6 | | 7/8y=-5 | | 97=2n+9 | | -7.6q+1.7=-29.8-1.3q | | -.80t+.40=.666 |

Equations solver categories