21-x=7-3x

Simple and best practice solution for 21-x=7-3x 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 21-x=7-3x equation: 



21-x=7-3x

We move all terms to the left:

21-x-(7-3x)=0

We add all the numbers together, and all the variables

-x-(-3x+7)+21=0

We add all the numbers together, and all the variables

-1x-(-3x+7)+21=0

We get rid of parentheses

-1x+3x-7+21=0

We add all the numbers together, and all the variables

2x+14=0

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

2x=-14

x=-14/2

x=-7

See similar equations:

| 8/m+3=4-m | | 3/2x-3=3/4x | | 6.5x=4.5 | | (x​2​​−6)^2​​=−3x^2​​+18 | | 8m+5=5m+8 | | 4(2v+11)=4(1+9v)+12 | | 5(1x+2)=3(1x+6) | | 5w+13=40 | | 1/4-3/2s+15/3=5/3s | | 13+2(5c-2)=-15 | | 3(y+19)=12y+13 | | g/5-12=50 | | 4x=x/2+17 | | -17-2x=7+3x | | 0.6(x+30)+0.6x=54 | | 1/3v+3=8 | | -3x-5+5x=-4x+7 | | 2n-13=25 | | ​2/3=​15​​z​​ | | r+7=1 | | ​3/​​2​​=​15​​z​​ | | -2(-3x+7)=-12 | | 3m-13=2(4m-5) | | 4x^2/3+5x/3=0 | | 0.75s-5/8s=44 | | 11+4w=77 | | 6x-4=1/4x-88 | | -3/4x+6=1/2x+8 | | -243=-90+x | | (x-10)=((7-2) | | -3/8(1/2x+2)=-3 | | -3/8(1/2x+2=-3 |

Equations solver categories