-a-1=a-21

Simple and best practice solution for -a-1=a-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 -a-1=a-21 equation:


-a-1=a-21

We simplify the equation to the form, which is simple to understand 
-a-1=a-21

We move all terms containing a to the left and all other terms to the right. 
-1a-1a=-21+1

We simplify left and right side of the equation. 
-2a=-20

We divide both sides of the equation by -2 to get a. 
a=10

See similar equations:

| 3.6x=9 | | -8(9d+2)=34 | | 6x-3=-6(2-x) | | 5x+42=-21+8x | | 7x+10-6x=13 | | 11+-2(d+-1)=-2d+13 | | 4+8x=4x-8 | | 4=4000 | | 4x+5=-37-10 | | 11-2(d-1)=-2d | | x/2+1=-7 | | -7a+15=-90 | | X/6=-2/3 | | 200m-100m+52800=55000-175m | | -3+5(1+8b)=24 | | 30+5y-10=17y-12-4y | | 4(6)-4x=4 | | abcd+efg=hijk | | 9-3x=-4 | | -5(10-4n)=12n-50 | | -15=-4+7(z-3) | | 4x^4+20x^2-23=0 | | x^2+75=2100 | | P/6+9 | | 3(4x-1)-2=19 | | -2x+1=-2 | | P-4=-9+q | | y=395x-0.9x^2 | | 1+1/4-3/2+5/8 | | 6(0)+5y=15 | | 10.5=2x+18.5 | | 6x+5(0)=15 |

Equations solver categories