21-x-4=

Simple and best practice solution for 21-x-4= 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 21-x-4= equation:


21-x-4=0

We simplify the equation to the form, which is simple to understand 
21-x-4=0

We move all terms containing x to the left and all other terms to the right. 
-1x=0-21+4

We simplify left and right side of the equation. 
-1x=-17

We divide both sides of the equation by -1 to get x. 
x=17

See similar equations:

| 4x^5-28x^4+49x^3=0 | | -3y=x-5 | | 10u^6-15u^5-45u^4=0 | | (x+2)(2x-6)=0 | | 12v^4+44v^3+40v^2=0 | | P=a^2+a-1 | | x-3y-z=-8 | | 0.3x+0.7x-0.4= | | v^6-3v^5+10v^4=0 | | x=y^25 | | 0.3x+0.7x-0.4x= | | 5y-4z=-2 | | b=8cm | | 10y-4z=8 | | AC=12x-18 | | BC=5x-8 | | AB=4x+14 | | AB+BC=AC | | s(2n-3)=-30 | | 7w^5+28w^4+28w^3=0 | | x=5x^2-3 | | x^3-6x^2+5x+12=0 | | a^2-a+6=0 | | x^3-6x+5x+12=0 | | 16+4(x-6)=0 | | CD=5x-10 | | AB=3x+8 | | AB=CD | | 6x-(7x-10)=3x-8 | | 7x-3(4x+3)=-8x+18 | | 32x-40= | | 3x^2+8xy-16y^2=0 |

Equations solver categories