x+1=21

Simple and best practice solution for x+1=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+1=21 equation: 


Simplifying
x + 1 = 21

Reorder the terms:
1 + x = 21

Solving
1 + x = 21

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + x = 21 + -1

Combine like terms: 1 + -1 = 0
0 + x = 21 + -1
x = 21 + -1

Combine like terms: 21 + -1 = 20
x = 20

Simplifying
x = 20

See similar equations:

| 9x^2+18x+9=0 | | 2x=15y | | 7(1-7v)+3=108 | | -2((2)+3y)=18 | | 36(27-6.5x)=15(6x-7)+40.2 | | 176=92-u | | 10(x-2)-3=8x+5 | | (-6i)(-6i)=-36 | | (-6i)(-6i)= | | -8(a-3)+4=84 | | 150=2x+y | | 8+x=-16 | | -5.61-0.2b=5.5(b+2.4) | | a=5(a-2)+3 | | 3.5x=4 | | -2(-6n+7)+3=5(1+2n) | | 3x-9=x+21 | | 5y+3=2y-3(3)+5 | | 300=2x+y | | 5y+3=2y-3(4)+5 | | 5y+3=2y-3(0)+5 | | -5.61-0.2b=55(b+2.4) | | 5(-2a-4)=20 | | h=-16t^2+29t+6 | | -3x^2-13x+10=0 | | 4(a+3.7)=8a-0.4 | | 5n-3=n+18 | | -9+7x+10x=7 | | (3x^2+2x^3)-(x^3-3x^2+1)= | | 2(x+2)=4x-9 | | 12.0y+3=3.3y+36.06 | | 4.8x+55=7.3x+5 |

Equations solver categories