-r+9=20

Simple and best practice solution for -r+9=20 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 -r+9=20 equation: 



-r+9=20

We move all terms to the left:

-r+9-(20)=0

We add all the numbers together, and all the variables

-1r-11=0

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

-r=11

r=11/-1

r=-11

See similar equations:

| 14=2(d+3) | | -18=-2(x+6) | | 11=5−w | | -4=-12/h | | 1/5e-1=2/4 | | 2x-5=-21x+7/3 | | 4(d-7=524 | | 35x=20x+45 | | 3t−5=10 | | 10x-37=4x-5 | | 6(n+1)=90 | | x^2+11.2x-5.6=0 | | 9+x/22=1 | | -6-10n=-146 | | 4+n/2=12 | | -9(b-5)=45 | | -9(b-5=45 | | -(r-7)=26 | | -(-1+k)=7 | | a/18+10=9 | | 2=x/16 | | 30=15+b | | 14x+10x=45 | | 9x^2+2–4=0 | | 6×n÷11=7 | | 3(x-8)=80 | | 15(x+2)+135=180 | | 18x-15=9x+78 | | 165+15x=180 | | (x+9)/14=(1/7)+((x-3)/8) | | w/5+1.2=-11.3 | | 4h−6=10 |

Equations solver categories