x+21=20

Simple and best practice solution for x+21=20 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 x+21=20 equation: 



x+21=20

We move all terms to the left:

x+21-(20)=0

We add all the numbers together, and all the variables

x+1=0

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

x=-1

See similar equations:

| n^2-3n+2=60 | | 8x-7=-16 | | 2+n/8=1 | | 11k+6=k+7 | | 7^2x-9.7^x+14=0 | | 84=b^2+3b | | -5(x-5)=3(10-2x)+x | | 7(y+3=)=5y+8 | | 42=1/2b^2+3b | | 12t+3=18t | | 2x-1+4=13 | | -21=3(-4x+5) | | 11-9x=34 | | -1=8y+7(y+2) | | (v-3)/(v+5)=-12/7 | | ((x+2)/12)=(5/12) | | -12x=5x+68 | | 42=(1/2)*(b)*(b+3) | | 2=-8(1+2b)+2(3b-5) | | 3/4(×-2)-1/3(5-2x)=-2 | | 5v=15/2 | | a+-7=3 | | 1/5(5x-6)=-7/4-1/4 | | 3y2-4y-7=0 | | 15-24a=5 | | 4=0.125+b | | -5+7x=43-x | | 7(4x+7)=21 | | (5x+3)+(4x+8)=146 | | 2+(-1+6x)=7x-1 | | 2n^2-3n+2=60 | | 2(v-7)-7v=-34 |

Equations solver categories