3x-9+x=12

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



3x-9+x=12

We move all terms to the left:

3x-9+x-(12)=0

We add all the numbers together, and all the variables

4x-21=0

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

4x=21

x=21/4

x=5+1/4

See similar equations:

| 21x-33=-21 | | (4/3x-8)-2x=44 | | 7/8x-x=18 | | (-5x+2)+2x+5=-2 | | 3x-24=-3x+28 | | 3x+4=x+I | | 10x-45=5x+80 | | X+2x+X/X+1=2 | | 3x-6x+2=-8x+2+5x | | 6=96/y | | 4b=3b-3 | | 25x=20×2x | | 2-x+3=4 | | 5-13c=4c+39 | | 5-x3x=17 | | 7=+3v-14 | | 17y-47+27=4y-18 | | 2z-5.8=1.2 | | 91=73x+1 | | -3x-2=-2x+8-x | | 65=-10y–3y | | (13x-7)=100 | | 7(x+5)+2(6-x)=12 | | 35=-16p | | -3k-2=-2k+8-k | | 231=7+48m-8 | | f(6)=-(6+5)^2 | | -58m-6=270 | | -2(2c-4)=1/3(12c+24) | | -5j+-16=-71 | | -56=4-7x-4 | | 0.8(4-a)=5 |

Equations solver categories