21=-5a-9

Simple and best practice solution for 21=-5a-9 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=-5a-9 equation: 



21=-5a-9

We move all terms to the left:

21-(-5a-9)=0

We get rid of parentheses

5a+9+21=0

We add all the numbers together, and all the variables

5a+30=0

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

5a=-30

a=-30/5

a=-6

See similar equations:

| 7c-6c=7 | | 148=n-(-66) | | 5x+8=10x-20 | | 148=n-(66) | | -10=2(g-8) | | -3(a-5)=-18 | | (3x-8)(3x=2)-(4x-11)(2x+1)=(x-3)(x+7) | | -132=-4x-4(-6x+8) | | 2(x-3)=x-19 | | -4+6m=m | | -3/4+2/5x=7/20x*1/2 | | 18x+42=26x=2 | | 8(2x^+3)=48 | | -5.6(-6.3n+4.9)-4n=-183.84 | | 2(n+2)=2n–4 | | 3(1+7f)= | | -9x+1+1=56 | | -10-6v=26 | | 8=7p | | -31=-15+m | | -3x-2(3x+13)=-71 | | (Y-6)(4)y=12 | | 4(-3y+-1)+11=-3 | | 2z+–1z+19z=–20 | | x/2-10=(-8) | | 12y+25=385 | | 3z2+6z=24 | | 10w-3=37 | | 3=4n=n=2n=15 | | 12y/y=2.56 | | m/6=14.9 | | 7x+8=5x-27 |

Equations solver categories