-r+4r=-12

Simple and best practice solution for -r+4r=-12 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+4r=-12 equation: 


Simplifying
-1r + 4r = -12

Combine like terms: -1r + 4r = 3r
3r = -12

Solving
3r = -12

Solving for variable 'r'.

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

Divide each side by '3'.
r = -4

Simplifying
r = -4

See similar equations:

| 14k-6k= | | 0.50x-50.00=300 | | -3(x-2)+7(x+3)=11 | | -4(-7x+4)=320 | | 14x^2y-21xy= | | 0.21x-5.26=19.94 | | x+2x+51= | | 6-8x=7x-10x-4 | | 0.21x-5.26=15.74 | | f(3)=-5x^2-9x+9 | | 3(x-3)+4=14 | | 15x+8x+1=4 | | 5(x+2)=8+2(x-5) | | 2(3+x)=26 | | 3=1v+3 | | 12x^2-16x-3= | | f(x)=-5x-9x+9 | | 7x+6=76-7x | | 4x+7x-69=85-6x | | X-7=2x-1 | | 4-3x+(5.5)=9 | | (x+9)5x= | | -3x-5=-7x-33 | | 5x^2+12-9=0 | | 6(x+5)=14 | | -4+5n=-7 | | 60k+80=50k+90 | | 4x-21=11 | | 3+7x=-2x-78 | | -4(x-2)=x+1 | | h(t)=60-16t^2 | | 8-(1-3x)=-1 |

Equations solver categories