X+21=39

Simple and best practice solution for X+21=39 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=39 equation: 


Simplifying
X + 21 = 39

Reorder the terms:
21 + X = 39

Solving
21 + X = 39

Solving for variable 'X'.

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

Add '-21' to each side of the equation.
21 + -21 + X = 39 + -21

Combine like terms: 21 + -21 = 0
0 + X = 39 + -21
X = 39 + -21

Combine like terms: 39 + -21 = 18
X = 18

Simplifying
X = 18

See similar equations:

| 5t^2-3t-8=0 | | 17xy(x+y)= | | 2m^2-11m+14=0 | | 3p^2-14p-5=0 | | 18r-7=3+8r | | -3(x-10)=6(3x+3) | | 7h-4ch-3=33 | | -d^2-23d-50=0 | | -x^2-11x-24=0 | | 17-y=-2y+5 | | w^2-13w=0 | | x=-2y+5 | | 10+10*0+10=20 | | 10+10*0+10=10 | | 10+10*0+10=5 | | x-36= | | w-2x-7y+7z=5 | | 3y-7=9y+2 | | 10+1*0= | | 1+8n=8+1+3n+6n | | 1+8n=8 | | -9(2-p)= | | (h+8)(-3)= | | (d+5)9= | | -4(s-4)= | | 494359z+239x=21939x-2949z | | (x^2-3)(x^2-3)+(x^2-3)-2=0 | | 3a(7b+6c)= | | 8(u-2v)= | | (x^2+1)(x^2+1)-4(x^2+1)+4=0 | | -5(4n-5)= | | 4(1y+4)+2=y |

Equations solver categories