81=4u+5u

Simple and best practice solution for 81=4u+5u 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 81=4u+5u equation: 



81=4u+5u

We move all terms to the left:

81-(4u+5u)=0

We add all the numbers together, and all the variables

-(+9u)+81=0

We get rid of parentheses

-9u+81=0

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

-9u=-81

u=-81/-9

u=+9

See similar equations:

| (4x+14)+(3x+29)=90 | | 2.5+2y=20 | | -5(x+2)+9x=6* | | 3x+5=√2-2x | | 2w-7+8=31 | | 3(d+12)=8-4d-4 | | 5x-11=x+9+x-2 | | 2x+60=1.5x+4 | | (-5+x)/(22)=-1 | | 1.35x+14.5=63.4 | | -11+7x=-4 | | 1200+1.1b=2.5b | | y/10=-10 | | 18=-2+x | | 15x+3x=72 | | V-9v+6=22 | | 4-2(x+3)=20 | | 3(3x+8)=-3* | | 6x+7=-3x+25 | | B=3+V/h | | 17=x/19 | | 6(2x+2)-7x=22* | | 24=-9-(2+7b) | | 4.2x-3=0.5(-51.6x+6) | | 4-(-a+4)=6 | | 36=-4/5n | | 6(-8+5r)+8r=19+123 | | 15x+9=36 | | x/18=30/45 | | 3/(2a−6)+12=25(3a+20) | | -9+(n)/(4)=-7 | | -1/5d-2/5d=39 |

Equations solver categories