-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

-1r-(2r-9)=0

We get rid of parentheses

-1r-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:

| x²-21x-100=0 | | 40-(3c+4=2(c+3)+c | | 435r=56940r | | 4-3x=x+1-5x | | 12v=8v+28 | | 5x+4=7-(3x-5) | | 40-(3c+4=2(c+3)=c | | -3(3c+5)=2(10-c | | 3x-4(5-2x)=x+2 | | 3p-28/4=3 | | 27-5x=10+12x | | w/2=4.5/6.5 | | 2(5y-7)=5y+1 | | 4/5x12=x | | 13x+7=9x+27 | | 8b-(3b+4)=17 | | (19x-1)-(11x+9)=30 | | -(5m+11)=3(m-41 | | x(x+5)=3(x-14) | | 55x+45x=125 | | 3x-5(x-2)=6+3x+1 | | 9x-19=8x | | 3x-1=7-4x | | 12+12z+7=62-6z | | 4(w+5)-w=w+12 | | 4x+x=237 | | 2(c+5)-7=3(c-2) | | x-3+14=17 | | 6a-11=67 | | 2(j+6)-12=-4(j+5) | | 11x=14x-18 | | 0.08(y-7)+0.04y=0.14y-0.6 |

Equations solver categories