7/x=21

Simple and best practice solution for 7/x=21 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 7/x=21 equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

7/x = 21 // - 21

7/x-21 = 0

7*x^-1 = 21 // : 7

x^-1 = 3

-1 < 0

1/(x^1) = 3 // * x^1

1 = 3*x^1 // : 3

1/3 = x^1

x = 1/3

x = 1/3

See similar equations:

| 48/2(9+3) | | 2p-4q/16q-8p | | log(x-15)+logx=2 | | 16-6x=10+7x | | logx=-1.42 | | 30+-15x=(3*13+-1x*13) | | 2(4/x)=0.5(7+(2/x)) | | 72-3x=15x+22 | | y^2-xy-x^2=0 | | 27x-14=23x+14 | | (x)(x)+(x+1)(x+1)=(2x-1)(x+4) | | 2/3(3y-1)-(y+2)=1/3 | | 9/3*(6*4/8) | | X+(x+4)=16 | | 8x^2+14x-7=0 | | 2x+7=-6x-5 | | 8x=112-6x | | (x+8)(x+17)=0 | | 14y+9x=10 | | (2^10+5)/(16/8) | | (x+6)(x+15)=0 | | 9x+14y=10 | | 5y-20/4-y | | 6x+3=2x+13 | | c=9/8(k-83) | | x^3+6x^2+11x+6=0 | | 4x-3+3(2x-3)=5x-2(x-1) | | 34/5x21/4 | | -3x+3x=-5+18 | | 7(x-3)(x+3)=0 | | (5X-1)(3X+1)x=2 | | 2(x-1)-9=-25 |

Equations solver categories