21-3r=6

Simple and best practice solution for 21-3r=6 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 21-3r=6 equation: 



21-3r=6

We move all terms to the left:

21-3r-(6)=0

We add all the numbers together, and all the variables

-3r+15=0

We move all terms containing r to the left, all other terms to the right

-3r=-15

r=-15/-3

r=+5

See similar equations:

| 4x+10+5x=6+x+4 | | -5s=7−6s | | t+5=-9 | | 4(j-77)=16 | | 191-v=264 | | 7=5h-3 | | 3x-5(x-4)=-7+5x+6 | | 9(m-86)=81 | | -6(x+4)+4x+5=8x+11 | | 36-9x=6-3x | | 90=x+(5x+18) | | 1/3(3x-)=-1/5-3/5 | | 6x-40=x-20 | | 6(m-78)=84 | | 2x-168=42-8x | | X+-1=5x+3x-8 | | -10x-19=8x+11 | | y=(-7-2y/15)^2 | | 30=6(h-90) | | 100-3x=50+2x | | 8j+23=95 | | 14=13(y+14) | | 36/24=3/x | | 6(k-2)-8=3k-(2k-3) | | 3.8+x=8.6;x0.9 | | 235=5(-6x+11) | | -15+3x=3x-15 | | 4x²-25=0 | | 500-3x=80 | | x-14=-9+x | | 8y+21=12 | | -4(6y-5)=23-3(8y-1) |

Equations solver categories