If it's not what You are looking for type in the equation solver your own equation and let us solve it.
8u+5=21
We move all terms to the left:
8u+5-(21)=0
We add all the numbers together, and all the variables
8u-16=0
We move all terms containing u to the left, all other terms to the right
8u=16
u=16/8
u=2
| 1+5(10x4)=171 | | 8(6x+1)=56 | | 2h+1=-15 | | |x/8|=1 | | 6x/2-2=4 | | 2(2.5x+15)=40 | | 2(-2n+3)-2(-n-1)=28 | | -4(12-e)=5(6+2e)= | | 26/w=5/6 | | 10^(3x-10)=((1)/(100))^(6x-1) | | 2(9y+6)-23+9y=-3+100 | | 5|x/8|=5 | | -42k-9-43+40k=-82+9+7 | | .2w=18.6 | | -3x-2=27 | | 0=0n-3n+3 | | 2q+12=-2 | | -7t+9t-44-8=-81+23 | | 4r+12=56 | | (5x+11)+62=(18x+11) | | 9h-2(5h-7)+8=-11+22 | | 2x+7=20,x=5 | | -7+12x=89 | | t/10=1 | | 4n+0n-2=-14 | | 8w+11=107 | | 90+(2x+2)+(x+5)=180 | | 8w=11=107 | | 3*x2=51 | | x36=2 | | 1/7x-1/6x=3/4 | | 163x14=2282 |