7r-12r+9r=

Simple and best practice solution for 7r-12r+9r= 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 7r-12r+9r= equation: 


Simplifying
7r + -12r + 9r = 0

Combine like terms: 7r + -12r = -5r
-5r + 9r = 0

Combine like terms: -5r + 9r = 4r
4r = 0

Solving
4r = 0

Solving for variable 'r'.

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

Divide each side by '4'.
r = 0

Simplifying
r = 0

See similar equations:

| 45-32= | | 8e=6e-14 | | 8e=6e-15 | | 6n*6n+n=0 | | 2(r+5)=20 | | 2w+3w=35 | | (1x-1)/(8x-8) | | -7*x=63 | | 1x-1/8x-8 | | b*b=-3b | | 4x-35=9x+40 | | 13x-31=8x+39 | | 1320=x(x-3) | | -3x-148=5x+84 | | -8m=72 | | 1320=x-3 | | log(4x)+2log(5y)= | | -8x-68=x+103 | | -36+x=72 | | 10x+-70=162+2x | | 9w^2+9=9 | | 10x-12=28+8x | | -151+8x=-9x+121 | | x^2+4x-361=0 | | -113-7x=5x+43 | | log(x-6)+log(x-4)-logx=2 | | -9-4x=-3x+14 | | -39+8x=57+4x | | 4/5r-5=-15 | | 33.2=2.1x+9.7 | | 5m^3+4mn-5m^2+4n= | | 0.3x^2=2.4x+0.3 |

Equations solver categories