r-3r=7

Simple and best practice solution for r-3r=7 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-3r=7 equation: 



r-3r=7

We move all terms to the left:

r-3r-(7)=0

We add all the numbers together, and all the variables

-2r-7=0

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

-2r=7

r=7/-2

r=-3+1/2

See similar equations:

| 13x+12=87 | | x+x/3=95 | | |4x-6|=2 | | 4k+7k=-22 | | c+11=21 | | 15-x+4=19 | | 30+x=900/x | | 13+m=18 | | 4.9a–27.4=11.9a+7.6 | | –4q+–10=10 | | 32-2+2n+5=38 | | 2x^-14x+20=0 | | 3x-38+2x+22=180 | | 3+w=10 | | 20=7y=2-7 | | 6x-67=71 | | 51=-3x=16 | | 2^(x-3)=1.8 | | 6x-67=109 | | (x+8)+8+90=180 | | 48=-6(-4-7x)+8(-8x+3) | | -(x+3)-4(2x+1)=56 | | 0.14h=3.36 | | 5x-65=110 | | -6(-6+5x)-4(8x-6)=-64 | | 4n+8n=28 | | h-16=-28 | | -6u=48+6u | | 3(3.5-3y)-2y=5 | | (9x+11)+(13x-21)=180⁰ | | 0.25x+4=12 | | 462x=6 |

Equations solver categories