2r-(1-8r)=-81

Simple and best practice solution for 2r-(1-8r)=-81 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 2r-(1-8r)=-81 equation: 



2r-(1-8r)=-81

We move all terms to the left:

2r-(1-8r)-(-81)=0

We add all the numbers together, and all the variables

2r-(-8r+1)-(-81)=0

We add all the numbers together, and all the variables

2r-(-8r+1)+81=0

We get rid of parentheses

2r+8r-1+81=0

We add all the numbers together, and all the variables

10r+80=0

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

10r=-80

r=-80/10

r=-8

See similar equations:

| 2x+3=2*(x-4) | | x^2-150x+50000=0 | | t/2.1=6.1/1.1 | | c+4=2c-3 | | |5x-3|=6x+1 | | 2(3^3x)=31250 | | 6u-1+2u+5u-9-234=999 | | (600+x)+x=2000 | | 3x/5x+2=-3 | | 3(2+x)=3x+36 | | a/2+(3a)/3=3/2 | | 13=10+a/5 | | 2-(y+1)(y+1)=5-3(y-5y-9)-y2 | | 4/9x9/10=2/5 | | (p+5)=(p-4) | | p+5=p-4 | | -2-k/4=-7 | | f/2+-3=1 | | k/3+-6=-3 | | r/5-10=8 | | x-((32000+-5000)(0.9))=0 | | 4m+-1=-21 | | x=(32000+-5000)(0.9) | | 5-k+12=165−k+12=16512=16 | | 6p+3=6p-3 | | 8(x-5)/2=3x | | 12g/7=8 | | 5(x-77/55)=6x+11 | | (W+3)(w+3)+4=(w-2)(w-2)+5w-2 | | (W+3)2+4=(w-2)2+5w-2 | | 9-y/3=-4 | | d(1.2-0.5)=14 |

Equations solver categories