3a+21=-15

Simple and best practice solution for 3a+21=-15 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+21=-15 equation: 



3a+21=-15

We move all terms to the left:

3a+21-(-15)=0

We add all the numbers together, and all the variables

3a+36=0

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

3a=-36

a=-36/3

a=-12

See similar equations:

| y2+18y+81=0 | | j=1+3j | | 35+.8x=43-(-7)x | | 4.3d+7.5=5.9d | | 2.54=c | | -.25a-4=1.4a-3 | | 2x-1=-5÷3 | | x+14=23x=x= | | 2x+20)+(6x+24)=180 | | 6x+9=59x-1 | | 2(a-4)=4a-(10+4)= | | b=85+(15+7)1 | | 9n=3n+3 | | 2(2x-4)+2=4(x+2)-11 | | -2x-3=1+8x | | 0.55x+0.1=0.05x-3.9 | | Y=-10/7x+20 | | 3+4x=9+1x | | m/5+-6=8 | | 3x+64=-5x+-8 | | 3.5+10m=7.39 | | 10=3(c+2)+1 | | 4y=-2y | | m/5+5=5 | | -4=-40+11x | | 8(x+1)=6(3x-1) | | 8(p+4)=88 | | 27=3c-3(6-2c)=27 | | 4h+5-3h=4h-4 | | 2x+50=5x-25 | | 3-(m-4)=23 | | -12-8n+5n=3n-4n |

Equations solver categories