-9r=20+r

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


Simplifying
-9r = 20 + r

Solving
-9r = 20 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
-9r + -1r = 20 + r + -1r

Combine like terms: -9r + -1r = -10r
-10r = 20 + r + -1r

Combine like terms: r + -1r = 0
-10r = 20 + 0
-10r = 20

Divide each side by '-10'.
r = -2

Simplifying
r = -2

See similar equations:

| 15m+22=-7m | | 3n+7=7n-13 | | -40=10(4+s) | | 384=12(-8+5t) | | -0.375b=-36 | | 49-4x=14x+19 | | 3.75c=-30 | | f(w)=3x+14*f(-9) | | 4+3v=7 | | 4a-9=6a+7 | | 8-9x=47-16x | | f(w)=3x+14 | | -6-y=-30 | | -5(2x-5)=-35 | | x+2=-61 | | -38=17-5z | | 6x+5=4x+9 | | -19-9x=8x+15 | | 3x+13=-117-10x | | 126-4x=3x+21 | | -1(z+5)=-14 | | 5(2+y)=77 | | -33-5x=7-10x | | 8n+1=25 | | (5+3j)-(-2+2j)= | | 64-4x=8x+16 | | 3x+2=-1 | | 4w=3w+10 | | 12d-7d=2d+6 | | 3r-2=7r+18 | | 6q-13=4q-9 | | 7c+12=-4c+48 |

Equations solver categories