21=x+7-3

Simple and best practice solution for 21=x+7-3 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+7-3 equation: 



21=x+7-3

We move all terms to the left:

21-(x+7-3)=0

We add all the numbers together, and all the variables

-(x+4)+21=0

We get rid of parentheses

-x-4+21=0

We add all the numbers together, and all the variables

-1x+17=0

We move all terms containing x to the left, all other terms to the right

-x=-17

x=-17/-1

x=+17

See similar equations:

| 4x+20+x+26=360 | | 20/5=n/7 | | 2x-7/3+1-x/2=10 | | 12/4=n/1.5 | | 3x-24+8x-5=180 | | 25/5=n/7 | | r2+25r-10=0 | | 12x-44443x+12313213434=1213434 | | 12x-13x+12313213434=1213434 | | 8-2x3=12 | | 3^2+x-4=0 | | -3x4-8=-2 | | 4x+8=7+1x | | 89=25*x | | 2x-4x=-10-4 | | 6x-4=216 | | 6y-3+y=18 | | f+5/5=20 | | t+7=-9 | | 8x-2x=2-4 | | 9x+16=13x | | (-7x+81)*5=4x | | 7v-56=-14 | | -7x+81/5=4x | | 9x+8x-2x=28+2 | | 15x=60+10x | | 12x=40+2x | | 11/4=-33/5y | | 2d+6=3d-4 | | -2+8x=78 | | 10y=-12 | | -44=-11y |

Equations solver categories