u-21=0

Simple and best practice solution for u-21=0 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 u-21=0 equation: 


Simplifying
u + -21 = 0

Reorder the terms:
-21 + u = 0

Solving
-21 + u = 0

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '21' to each side of the equation.
-21 + 21 + u = 0 + 21

Combine like terms: -21 + 21 = 0
0 + u = 0 + 21
u = 0 + 21

Combine like terms: 0 + 21 = 21
u = 21

Simplifying
u = 21

See similar equations:

| -6x+6y=-18 | | y+30=-1 | | 3x+23=7 | | b-11=8 | | Y=0 | | 8y-4=2x | | 5x+3y=8 | | m+(-3)=9 | | 3x-2y=24 | | 14=-x-x | | 3y+4x=12 | | 5=-8r+2-5 | | 0=-2m+8m | | Y+4x=1 | | 5n-5-2n=10 | | r-14=-23 | | -5x-8x=-13 | | -5-2p-5=-12 | | 20=4+k+7k | | 5n+2n=-7 | | t-(-15)=21 | | 4x^3+22x^2+30x=0 | | Y-2x=5 | | s+13=-5 | | 2y-y=7 | | n-16=-16 | | 18+5x=-14+x | | 18+5x=-41+x | | 5y-(3y+1)+2=2y+7 | | p+(-9)=33 | | 17=x+8+8x | | x^2+22x=0-102 |

Equations solver categories