21=-4-5a

Simple and best practice solution for 21=-4-5a 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=-4-5a equation: 



21=-4-5a

We move all terms to the left:

21-(-4-5a)=0

We add all the numbers together, and all the variables

-(-5a-4)+21=0

We get rid of parentheses

5a+4+21=0

We add all the numbers together, and all the variables

5a+25=0

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

5a=-25

a=-25/5

a=-5

See similar equations:

| 3=-4n-5 | | -5(v+5)-5=-55 | | 2(3v+4)=40 | | 21+2a=3(25/6a+1) | | 5x+100=2x-200 | | 6-7n=4n | | (m+3)=7 | | 4+x+x+11=9 | | 4+4(2-3v)=8(-v+3) | | 6m+3{10-m}=60 | | h=2.5(11)+60.2 | | 180=3x+17+1/2x-5 | | 12-4x=-7x-3(x-2) | | -85=-5(1-2m) | | 0,7b=-14 | | -4+4(3x-7)=-104 | | m+2-5(m+1)=49-2(m-2) | | 2(2-8n)=-108 | | 1y+8=14 | | (2x-10)=(5x+30) | | (x)^.5+(x+15)^.5=15 | | 2m+2m-5+8=11 | | 1n-9=-2 | | 3r+4+5=-9 | | 7b+2-7=-12 | | x-(0,15x)=32,99 | | 180-7x-43=180-3x+5-x+3 | | 6x-4=10x+8-4(x+1) | | 6=-2j | | 137-7x=188-4x | | -19=s-22 | | 9y+3=57y= |

Equations solver categories