3b-21=-30

Simple and best practice solution for 3b-21=-30 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 3b-21=-30 equation: 



3b-21=-30

We move all terms to the left:

3b-21-(-30)=0

We add all the numbers together, and all the variables

3b+9=0

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

3b=-9

b=-9/3

b=-3

See similar equations:

| 4.11-6.4x+1.11=22.5 | | 70-(x-10)=2(25+x) | | 5(a-2)=55 | | 0.07x=1140 | | 19b=104 | | 30n+60=90 | | (2x+15)+90=180 | | 3z-7;z=3 | | c+0.75=4 | | 0.6(x-3)=1.2 | | q+33=88 | | (2n-4)/4+5=n | | 5c-4=2c+5 | | 6m+3=4m-5 | | -9x-7-4x-4=15 | | 5x-42=2 | | d=-18/8= | | 16k-6k+4k+4k+2k=20 | | 6x+3x/2=180 | | 8q-8q+5q=10 | | -5p-7=-1-8p+2p | | 15d-11d-d+2d=15 | | 11x=6x+6 | | 3/5(x-4)=-18 | | 4x+7+10x+5=180 | | 11x-(2x+4)+14=4x | | -y+4y=3 | | 3x+9-30=4x-6 | | 21-a=11 | | 3^(x+1)=3^x | | 4(2x+1)=3x-6 | | 3=2y=3 |

Equations solver categories