r=9r-20

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


Simplifying
r = 9r + -20

Reorder the terms:
r = -20 + 9r

Solving
r = -20 + 9r

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-9r' to each side of the equation.
r + -9r = -20 + 9r + -9r

Combine like terms: r + -9r = -8r
-8r = -20 + 9r + -9r

Combine like terms: 9r + -9r = 0
-8r = -20 + 0
-8r = -20

Divide each side by '-8'.
r = 2.5

Simplifying
r = 2.5

See similar equations:

| 7x+5y+6z-2x+2z-7y= | | X+(.65x)=5000 | | 19n=2+18n | | 2m-20=-55+9m | | -3(x-9)=-2x | | 2(3x-5)=2(3x-1) | | 25x^2-36=13 | | 3(2t-5)=3(4+-3) | | 8(9c-3)= | | 2s^2+11s-216=0 | | 7(4+5*7)= | | 19-(12-6k)=14+7k | | .65x=5000 | | 2r-sy=-8 | | 2r-sy=0 | | 8x^2-18x+7=02 | | 12x-3=62 | | 3x+8=37 | | 25x^2-36=589 | | 4t-r=12 | | 8x-6y=-42 | | 3v^2-33=-6 | | 4x^6y^-10z^4/6y^10z^-10x^16 | | 3(z+10)=8z | | 12y-8=11y+2 | | 1=117x-.563x^2 | | -12+7=x+8 | | 24x^3y^6-16v^4x^4y^4=0 | | 5t-14=-6+4t | | (2v-3)(8-v)=0 | | a=37-12b | | 2.6x+57.8=20.9-9.7x |

Equations solver categories