-13+a=-21

Simple and best practice solution for -13+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 -13+a=-21 equation: 



-13+a=-21

We move all terms to the left:

-13+a-(-21)=0

We add all the numbers together, and all the variables

a+8=0

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

a=-8

See similar equations:

| X+(x+2)=60 | | 5(x-4=-60) | | 30+10x=60 | | -15=x-13 | | x-x*x+42=0 | | -7x+4(3+5x)=0 | | 28=6n+10 | | x-x*x+20=0 | | (7u+1)-(5-2u)=8 | | 16x-x*x-48=0 | | 7*x+(7-10)*7=-7 | | -2x-4=-37 | | 9x-x*x-14=0 | | 8-b=12.5 | | 3x=-9x+18 | | 48+8x-x*x=0 | | 3x/2-8=22 | | 211=3-x | | 9-5+2=4-5x | | -3(x+2)-2(x-1)=8+x | | 3x-8=-4x | | 8-b=121/2 | | -20-14b=-10b | | X=-8y-15 | | 7x+9=-x-8 | | 3(2x+9=39 | | 8-9f=-7f+13+9 | | 8x=57-9 | | (x=26)2=264 | | h(25)=25/25 | | 4(2+5b)-4=24 | | 16+12n=5+13n |

Equations solver categories