3a-7a=-12-21

Simple and best practice solution for 3a-7a=-12-21 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 3a-7a=-12-21 equation: 



3a-7a=-12-21

We move all terms to the left:

3a-7a-(-12-21)=0

We add all the numbers together, and all the variables

3a-7a-(-33)=0

We add all the numbers together, and all the variables

-4a+33=0

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

-4a=-33

a=-33/-4

a=8+1/4

See similar equations:

| 13=y/4-14 | | 4x^2+27x=-18 | | 17+1x=35 | | 11=1-n+6n | | -7=-8+n/16 | | -w+144=231 | | 11y+1=-4y-9(-4) | | 69=235-x | | -17+1x=-21 | | N-5-1=4n-n-12 | | 17=x-3(x+) | | 4x+1/2=3/4x-9/8 | | 9(2y–7)=y+7 | | 225-v=290 | | (2-i)(3+4i)=0 | | −3(x−4)+4x=3−8 | | 0=25-3/x^2 | | 9b-3=6b*7 | | 5+6x=3x+16 | | 9b-3=6b+12 | | -6=5x-12/3 | | 12y=600 | | 7x+3-4x+1=2x+5 | | 2x^2-13x=45=0 | | 1/3a+9=20 | | 1/2x-(9/5)=-1/2+19/4 | | 5+6x=-3x | | 2x^-13x=45=0 | | 5x+6=16-3x+54 | | 3239,75=6479,5x^-1,548 | | 3n2+24n+21=0 | | 5(x+1)=-2(x+1) |

Equations solver categories