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

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



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

We move all terms to the left:

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

We get rid of parentheses

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



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

(x+21)

We get rid of parentheses

x+21

Back to the equation:

-(x+21)



We get rid of parentheses

3x-x-21-21=0

We add all the numbers together, and all the variables

2x-42=0

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

2x=42

x=42/2

x=21

See similar equations:

| t^2+7t+10=(t+2)(t+ | | x/12.23=34 | | x/93=14 | | x/2.45=16 | | 2y=0+-10 | | -22+-2t=-94 | | 5c-6.8=33.2 | | 22+–2t=–94 | | x-323=535 | | 2+x=2x+2+x | | 3z+18=99 | | 0=4x+-12 | | 10m-27=13 | | 3x=x49-2 | | 10m−27=13 | | f−50=17 | | bX5/6=25 | | a+22=47 | | –1=q−82/–9 | | –1=q−82–9 | | 5(b+6)=65 | | 3/8k=18 | | 3(f+22)=99 | | 5·17=w | | 9(y-78)=99 | | 4x-8=6-9 | | 2(f-58)=70 | | 4c-8=6-9 | | x(1.06)^18=150000 | | 0=2.6666666667x-16 | | 3x=7x3-3 | | x-12.78=45 |

Equations solver categories