9=((3x+21)-21)-x

Simple and best practice solution for 9=((3x+21)-21)-x 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 9=((3x+21)-21)-x equation: 



9=((3x+21)-21)-x

We move all terms to the left:

9-(((3x+21)-21)-x)=0



We calculate terms in parentheses: -(((3x+21)-21)-x), so:

((3x+21)-21)-x

We add all the numbers together, and all the variables

-1x+((3x+21)-21)



We calculate terms in parentheses: +((3x+21)-21), so:

(3x+21)-21

We get rid of parentheses

3x+21-21

We add all the numbers together, and all the variables

3x

Back to the equation:

+(3x)



We add all the numbers together, and all the variables

2x

Back to the equation:

-(2x)



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

-2x=-9

x=-9/-2

x=4+1/2

See similar equations:

| 9=3x-x | | 9=(((x+7)*3)-21)-x) | | 2*3+x=90 | | 1/2（x+4）^2=8 | | 12x-2=10x+8 | | X^2-5x+11=5^1 | | 1/10+1/15-1/x=1/1 | | 1/10+1/15-1/x=1/18 | | 5^(x-1)=1/25 | | 2x^2-10x+25/2=0 | | 16x^2-8x+13=0 | | 7x+2=4(x+4) | | x²+12x+36=9 | | n=(3n/4)-7 | | n=(3/4)-7 | | 10m-11=7m-2,   | | x+1/2x+1/3x=88 | | z2-2z-4=0 | | 3x^-8x=0 | | 10m-11=7m-2 | | 2a+1=16-2a | | X^-2-5x^-1+6=0 | | (x+3/2)²-17/4=-17/4 | | 4x+16=6x-240 | | 2=0.1x-0.6x-6 | | x+1/2x=71 | | 2d^2-d-2=0 | | 6x-9=5- | | 8/y+3=10 | | (x×2)+(x÷2)+(x÷4)=99 | | 3(x+1)+2(x-2)-(x-3)=30 | | 360=108x+x^2 |

Equations solver categories