9x-21/x+3=12x-4

Simple and best practice solution for 9x-21/x+3=12x-4 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 9x-21/x+3=12x-4 equation: 



9x-21/x+3=12x-4

We move all terms to the left:

9x-21/x+3-(12x-4)=0



Domain of the equation: x!=0

x∈R



We get rid of parentheses

9x-21/x-12x+4+3=0

We multiply all the terms by the denominator


9x*x-12x*x+4*x+3*x-21=0

We add all the numbers together, and all the variables

7x+9x*x-12x*x-21=0

Wy multiply elements

9x^2-12x^2+7x-21=0

We add all the numbers together, and all the variables

-3x^2+7x-21=0

a = -3; b = 7; c = -21;
Δ = b2-4ac
Δ = 72-4·(-3)·(-21)
Δ = -203
Delta is less than zero, so there is no solution for the equation

See similar equations:

| -2-7w=-10-5w | | 5-(2x-3)=2x-0 | | -18=21=-3(x=7) | | z/5-4=13/6 | | -4p-11=-88 | | -.4x=40 | | A=65+39x | | 18–2x=6 | | 5x-8=32+1 | | 12s+14=11s | | 3x-x+4=(2x+1) | | 3+9n=-15n-18+24n-48 | | -8=-9.8t | | 2(2x+4)-3x=10 | | 8d=8+7d | | 10(a+13)+3a=260 | | 4m+-1(2m+3)=3m+2 | | G(t)=5t^2-8t+17 | | -14p+15=5-6p | | -10-8t=-10t+2-2 | | 7x-9+14=-10x-7 | | -5n-10=25 | | 5+(x-2)=8 | | 7x-24=-2(x-6) | | X3+4x=23 | | 35.31+x=161.23 | | 2x-3x-24=256 | | 3x+12=-x-8 | | -8=p-33 | | 80+5x=13x | | 2(x-1)=(2x+2) | | -6n-9=-5-5n |

Equations solver categories