a+21=23

Simple and best practice solution for a+21=23 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 a+21=23 equation: 


Simplifying
a + 21 = 23

Reorder the terms:
21 + a = 23

Solving
21 + a = 23

Solving for variable 'a'.

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

Add '-21' to each side of the equation.
21 + -21 + a = 23 + -21

Combine like terms: 21 + -21 = 0
0 + a = 23 + -21
a = 23 + -21

Combine like terms: 23 + -21 = 2
a = 2

Simplifying
a = 2

See similar equations:

| 4+y=3.5 | | 12/3+3/2x=1 | | -(3z+4)=6z-9z-6 | | 4+6x=2+5x+6-4 | | 7(3n+3)=7(8n+2)+8 | | 8x^3-20a^2+8x=0 | | -12y-8=28 | | 2/9/(-4/27) | | y^5-18y^4+6y^3=0 | | R=15w-5d | | 7m-2=3m+4m | | A+7-6b+9a-3b= | | 5(3n+2)=8(9n+4)+1 | | Y-32=16-2+4 | | -14+x=2 | | 2(x+2)=3 | | 7r-12+3s+8r-11s= | | (1/2x)+(1/3)=5((5/6x)-2) | | -3(3-3x)-3(x-6)=x-1-5 | | h-8+7h+2=14 | | -8=4-2v | | 5+27=-4(3x-8) | | 3y-11y-4= | | (11x+5)-11=8 | | -x^2+x+43+4x^2+x-37= | | y-1/z=3 | | 7n-2=6n-n | | 8(3m+5)=2m-5 | | R=15w-5w | | -2(x-5)-3x+2= | | 0.25n+0.1n=9.7 | | 8x+22=3x-21 |

Equations solver categories