r-3-3r=9

Simple and best practice solution for r-3-3r=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-3-3r=9 equation:


Simplifying
r + -3 + -3r = 9

Reorder the terms:
-3 + r + -3r = 9

Combine like terms: r + -3r = -2r
-3 + -2r = 9

Solving
-3 + -2r = 9

Solving for variable 'r'.

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

Add '3' to each side of the equation.
-3 + 3 + -2r = 9 + 3

Combine like terms: -3 + 3 = 0
0 + -2r = 9 + 3
-2r = 9 + 3

Combine like terms: 9 + 3 = 12
-2r = 12

Divide each side by '-2'.
r = -6

Simplifying
r = -6

See similar equations:

| 4y^2-49= | | -3x^2+15x+18=0 | | -3x+15x+18=0 | | 3x-8+x=14 | | -3y=30x+12 | | (p+2)(p-3)=50 | | 2*-9=1 | | 15-3.2=-6.8 | | x^4+7x^2-30=0 | | -5-2=-3+x | | 4(2x+1)=5x+3x+9 | | 120+24x=130 | | 3x^2-3x=5x-5 | | 30b^2-b-3=0 | | 6x+5y=-2 | | 2=3(x-3)-(x-7) | | -10x+18=0 | | 2y=11x | | X^3y^6-27=0 | | 5.4=2.08 | | 24u^5w^6x^8+21u^9w^9= | | .4(m-10)=4 | | 10x-21=8x-7-12x-6 | | x/3+7=13 | | 17x-9=2x(6) | | w^2+29w-30=0 | | 3x+4=4x+5 | | x/100=8 | | 4x=27x | | 2x-15=x+50 | | x/5-3=2 | | 9w+12w-2=7 |

Equations solver categories