9+3x=21-x

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



9+3x=21-x

We move all terms to the left:

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

We add all the numbers together, and all the variables

3x-(-1x+21)+9=0

We get rid of parentheses

3x+1x-21+9=0

We add all the numbers together, and all the variables

4x-12=0

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

4x=12

x=12/4

x=3

See similar equations:

| -2(-5+y)+2y=10 | | x=-1.1*x | | x=7.81*x | | 1.3^x=5 | | (1.03)^(x+1)=2 | | 13=21.s=21 | | 3x+2(38-3x)=52 | | 9.75=1/16w | | (y-2)(y^2+2y+4)=0 | | 8x-4=2x+12 | | 10+8y3=82 | | 3x+172=73 | | 3x+(86x2)=73 | | 37+90+x=143 | | -2x-5=30 | | 8y=6y+7/ | | 16+x=126 | | Y=4.3(2*x) | | 6x-12+64+74=180 | | 6c=9(c-2) | | 5c-0.75=11 | | 3x-15+4x-7+90=180 | | 6(n-3)-4=84 | | 20+8u=13u-20 | | a-5=-7+1 | | 6x(x-8)=32 | | 6x(x=8)=32 | | 10d2-55d+75=0 | | (7t^2-4t+3)=t^2+1-1 | | x=(2468)/((510-115))+(2468)/((510+115)) | | 18=2(y-6)-7y | | 7+8d=63 |

Equations solver categories