21-3=

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


21-3=0

We simplify the equation to the form, which is simple to understand 
21-3=0

We move all terms containing  to the left and all other terms to the right. 
0=0-21+3

We simplify left and right side of the equation. 
0=-18

0=-18

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

See similar equations:

| y^9=12 | | -8b+13=6b-15 | | 2p^2+18p-14=0 | | y*9=12 | | 0.4m+2.6=0.2 | | (4x-8)+(7x-8)+(9x-8)=56 | | 3x^2-7x=o | | (a-b)*(a-b)= | | (3a+2b)*(3a-2b)= | | 64c^12d^9= | | x^2-10x+25=24 | | 5x^2-9x=0 | | 4a^2-12ab+9b^2= | | 4x+50=8x+15 | | y^2-2y+4= | | 2(-12+2y)-4y=-24 | | 12(x+2)=36 | | 2x-4y=-24 | | 5(44+-0.8y)+4y=220 | | x=44+-0.8y | | 9x^2-144=0 | | 0.5w-1.32+1.2w=0.4w+8.04 | | 4-x^2y^2= | | 6x^2=15x | | 0.78p=1.2p-2.52 | | 7b=42 | | 4x-5=33 | | 8b+5=29 | | a^2+4a+45=17 | | 6b+9=21 | | 7-m=2 | | 10m-13=27 |

Equations solver categories