-r-2r=-9

Simple and best practice solution for -r-2r=-9 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-2r=-9 equation: 



-r-2r=-9

We move all terms to the left:

-r-2r-(-9)=0

We add all the numbers together, and all the variables

-3r+9=0

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

-3r=-9

r=-9/-3

r=+3

See similar equations:

| m+44=60 | | n-0.5n+3n-0.5n+n=0 | | b3-2=2 | | 2(3x–6)–4x+7=3 | | 1.33*x=1 | | -a+2a=-1 | | b2+1=5 | | x+17=-52 | | 1+2x-3=-4 | | 2+2x=18-6x | | 59191919191919191919191919191111111111111=x | | 4n+7(4n-2)=114 | | 180=6+3(7p+2) | | m+7-5m=15 | | 4(3+3n)+3n=117 | | q+(-5)=4 | | -v+2v=1 | | m/2+1=4 | | -100=-2(6n+6)+8 | | -7(1-5p)+p=101 | | 5x–2=10x–8 | | 5x–2=10x–8. | | 3/7(2x+9)=9 | | -13+28=-3(x+5) | | 2(3x+5)=-39+19 | | 95,000=10,000(1.03)7x | | 5(3x+9)=-47+77 | | X^2-14x+229=0 | | 0,5x^2+2=0 | | 180÷x=18 | | 3c-99=3 | | 27-4q=0 |

Equations solver categories