3u+9u=-84

Simple and best practice solution for 3u+9u=-84 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 3u+9u=-84 equation: 



3u+9u=-84

We move all terms to the left:

3u+9u-(-84)=0

We add all the numbers together, and all the variables

12u+84=0

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

12u=-84

u=-84/12

u=-7

See similar equations:

| 5+7(n+7)=33 | | -4=2x=12 | | 5c-17=2c-2 | | 0.1•n=89.5 | | 3.1x+2.611001874799945=23.07 | | 2z+5z+5=30-4 | | x+6/8=(1-x)+3/7 | | (60+2x)(80+4x)=9600 | | 3/5x+11.8=3x-5 | | 4(-2x+1)+7=2x-9 | | 4w−4=12 | | 8x^2+400x-4800=0 | | x1/2+16=36 | | 3.1x+(57.1/21.869)=23.07 | | 14(t-4)+7t=7(3t+4)-11 | | 19=1+3y | | 2+((9-x)/4)=10 | | 4(2x+1)=3(x+1)+7 | | 3(w-2)=6w+24 | | 3.1x+57.1/21.869=23.07 | | 21=r/2+5 | | 40+15+30=x | | 3=5−2h | | 6t+2=4t+8 | | −5.5x+0.55=−1.65 | | 0.2x=11,904 | | 1=5−2b | | 2m+5/3=m+2/2 | | x+35+12=77 | | 58+20+x=87 | | x+6+13=30 | | 4x+101+101+(3x+15)+(2x+17)=540 |

Equations solver categories