3^2+21x=0

Simple and best practice solution for 3^2+21x=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 3^2+21x=0 equation: 



3^2+21x=0

We add all the numbers together, and all the variables

21x+9=0

We move all terms containing x to the left, all other terms to the right

21x=-9

x=-9/21

x=-3/7

See similar equations:

| 5x=2.5x-3 | | 5=x-7=x12 | | 4y^2+y=39 | | 20t=15t+5 | | 34450+1900x=2550x | | 5x-32=130 | | 7x-18=130 | | 24x-8-18x=2(3x-5)+2 | | 25=n/4-3 | | 3-5x+9=12-8 | | 30=8/15x | | 7x-18=5x-32 | | 2(3x+4)=4(x+8) | | x^2-7x=170 | | 17^-9x=4^x-9 | | 3x+1/5=2x-2/3 | | 5(2x-6)=7x+9 | | x^2-12x+5=7 | | -5/7y=15 | | 3^(x+3)-3^x=78 | | n=(1.06)^2 | | 40-3x=5x+8 | | k/8+3=32 | | 3^(x+3)-3x=78 | | -2/5y=6 | | -3/5y=12 | | 5(3x-6)=2(5x+15) | | X+(x*0.1)=82000 | | 7p+5=-37 | | (X-8)(x-11)=70 | | -2/7y=6 | | 4v+48=132 |

Equations solver categories