12=m+21

Simple and best practice solution for 12=m+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 12=m+21 equation: 



12=m+21

We move all terms to the left:

12-(m+21)=0

We get rid of parentheses

-m-21+12=0

We add all the numbers together, and all the variables

-1m-9=0

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

-m=9

m=9/-1

m=-9

See similar equations:

| (9x-12)+30=180 | | r–3=14 | | -60=5s | | r–3=14. | | (7/3x)+(10/3x)=16 | | r+36=891 | | 1/2(6x-4)=5x | | 1/(6x-4)=5x | | x/13-10=-8 | | -x+5/6=2/3 | | 16r=608 | | -5x+6=-3-2x | | 5/6w=1/3 | | j+-13.36=0.64 | | 2t=66 | | Y=10x+23 | | b/3=-2.5 | | 162=-18m | | 2g+10=30 | | 3p–(2p+6)=11p | | x×13=-8 | | 3(6 | | 7j-3=88 | | 14=2x-8-4x | | (14x-47)=(8x-15) | | 8c-7=3c-17 | | 3(6 | | s=8+1/1.1904761904762 | | 3(6 | | h+16–2=–4 | | 2s=17.68 | | 2/5t=12/25- |

Equations solver categories