x+21=21

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


Simplifying
x + 21 = 21

Reorder the terms:
21 + x = 21

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

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

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

Solving
x = 0

Solving for variable 'x'.

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

Simplifying
x = 0

See similar equations:

| 3+(10-14)2+7(-3)= | | x^2+7x-78=42 | | x-39=-34 | | 2x+4(x-3)=3 | | 2(x-y)+3(2y-3x)= | | (-7)(-2)(-3)= | | (-6)+2= | | x^2+5x-6=8 | | 3x-16=6x+2 | | (4x^2+5)(1-x)=0 | | n+(n+4)=132 | | 100-4x=23x+16 | | 10x+3=2(3x+1)-x+8 | | 14-9x=80-30x | | -x+2+11x=-3+5x+40 | | 7x+4+x=1+3x+13 | | -129-7x=8x+21 | | 5x+14=-121-10x | | -2x-11=5 | | 138-5x=5x+8 | | -23-5x=13-9x | | 6x+10=82-2x | | 1+9x=89+x | | 5x-2=14x-74 | | 5x+12=42 | | 10+X=-5 | | N-32=-21 | | N+(24+N)+(3N-37)=512 | | 8x-2x^2=0 | | X+X+325000=575000000 | | x=x | | N+N+16=372 |

Equations solver categories