-9=9r+18

Simple and best practice solution for -9=9r+18 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 -9=9r+18 equation:


Simplifying
-9 = 9r + 18

Reorder the terms:
-9 = 18 + 9r

Solving
-9 = 18 + 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.
-9 + -9r = 18 + 9r + -9r

Combine like terms: 9r + -9r = 0
-9 + -9r = 18 + 0
-9 + -9r = 18

Add '9' to each side of the equation.
-9 + 9 + -9r = 18 + 9

Combine like terms: -9 + 9 = 0
0 + -9r = 18 + 9
-9r = 18 + 9

Combine like terms: 18 + 9 = 27
-9r = 27

Divide each side by '-9'.
r = -3

Simplifying
r = -3

See similar equations:

| 2x-13+13=-5+13 | | 3x+2(4x+1)+10=46-6x | | 3(m-20)=5m-58 | | t+19=27 | | w-11=0 | | 4.2(2x-4)+x=7 | | 3-336+2= | | 12(z+3)=28 | | 8.1t+8.68=-49.64 | | G(10)=3x+4 | | 3xA=c | | 8+4x=x-1 | | 9x=(9x^2)-21xu+7i | | 8(p-.25)=4(29-.5) | | 9x-7i=(9x^2)-21xu | | 3b^2-19b+-14=0 | | 4x+7-3x=13 | | -3x^2-12x-10=0 | | 17-(3x-7)+19x=4(5x+3) | | 20x=1500 | | 5t^2-36+-32=0 | | -5x(x-2)-(x+2)=50 | | 8(7g-9)-6(7g-6)=-g+9(g-8) | | 5t^2-36+-36=0 | | 2+3(3b-2)=3(2b+3)-1 | | 9x-1=5(x+3) | | 2x+9=2(x-2) | | 2c^2-9c+-5=0 | | -15+z=4(3z-2)+37 | | 4x^2+6x^2-3x^2= | | 38x+19= | | 6x+15=537 |

Equations solver categories