-21/(x-9)=7

Simple and best practice solution for -21/(x-9)=7 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 -21/(x-9)=7 equation: 


D( x )

x-9 = 0

x-9 = 0

x-9 = 0

x-9 = 0 // + 9

x = 9

x in (-oo:9) U (9:+oo)

-21/(x-9) = 7 // - 7

-21/(x-9)-7 = 0

(-7*(x-9))/(x-9)-21/(x-9) = 0

-7*(x-9)-21 = 0

42-7*x = 0

(42-7*x)/(x-9) = 0

(42-7*x)/(x-9) = 0 // * x-9

42-7*x = 0

42-7*x = 0 // - 42

-7*x = -42 // : -7

x = -42/(-7)

x = 6

x = 6

See similar equations:

| -8x-3y=25 | | -24/(x-7)=8 | | 9t-t+9t=15 | | 12/(x-4)=6 | | -3/(x-3)=3 | | 9t-t+9t=-15 | | 6/(x-4)=3 | | (2x+12).66-3=13 | | -5z+2z+-2z=-5 | | maxl=39b+17c | | 1.5n+7=20 | | 14h-12h=16 | | 4(x-9)=-12 | | 69x+10=30 | | 19h-20h-5h=20 | | x=100/2 | | 39x+70=3 | | 19h-20h-5h=-20 | | 8x-4=x+59 | | Z^3+Z=0 | | x+6=8x-50 | | 6x-9=9x-39 | | 4*x^2-2*x-2.6=0 | | 8x+4=2x+34 | | 2a+1=98 | | x-3=9x-83 | | -4x+8=3x+6 | | 6x-4=9x-7 | | 25x=9x^2 | | 9x+6=8x+7 | | 4q-3q=19 | | 2t-2t+3t=15 |

Equations solver categories