2a+21=9+8a

Simple and best practice solution for 2a+21=9+8a 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 2a+21=9+8a equation: 



2a+21=9+8a

We move all terms to the left:

2a+21-(9+8a)=0

We add all the numbers together, and all the variables

2a-(8a+9)+21=0

We get rid of parentheses

2a-8a-9+21=0

We add all the numbers together, and all the variables

-6a+12=0

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

-6a=-12

a=-12/-6

a=+2

See similar equations:

| z-25=12 | | 3x-9=24-10(x-7)=40 | | -5(3x-4)=3x+6 | | 18.x+42.7=134.2 | | 7x+15x+21=6 | | 3x+10=40-2x | | 24x+12=-4(-6x-3) | | (x-2)(x+8)=0. | | (2x/5)+3-(4x/5)=(1.5) | | 3x2+15x–6=0 | | 19=v/2-17 | | x-21=3x+3 | | t=20-16t2+32t | | 8-y/3=19 | | 16+2v=42 | | 3x-16=136 | | t/4+ 3=7 | | 2x=(4x)/3 | | t4+ 3=7 | | X=1.8x28.8+32 | | 19=10+3j | | (x+7)^3=10 | | 60=0.0018x | | 5=0.002x | | 6(x+8)-9=39 | | 6z-107=109 | | 6z-107=71 | | 2x2=10x−9 | | Y=2/3xx=4000 | | 1/3y+11=15 | | 12+28=-5(4x-8) | | s{^3}-64=0 |

Equations solver categories