If it's not what You are looking for type in the equation solver your own equation and let us solve it.
21=x+.1x
We move all terms to the left:
21-(x+.1x)=0
We add all the numbers together, and all the variables
-(+1.1x)+21=0
We get rid of parentheses
-1.1x+21=0
We move all terms containing x to the left, all other terms to the right
-1.1x=-21
x=-21/-1.1
x=19+0.099999999999998/1.1
| -8=u/5+1 | | 1.5b-0.7b=12 | | 6y=35/5 | | 230.25x=2466 | | -0.4=-1.2x+2 | | 1y+9/15=0 | | -0.4=-1.2x=2 | | 200x+6=500x+6 | | -2/3x+6=2 | | 4(m+–4)+–5=–13 | | 5.5(d-2)=-12.1 | | 9+10p=-141 | | 30=12-2y | | 2(3-5x)+3=5x | | 84=4r-9 | | 8x+11+12x-1=T | | ((1/2)x+20)=(3x-85) | | 4(4x-2)=-20+4x | | 3x+5=x+2(x+3) | | x(x-4)=16 | | 3x+9=6x-3x+9 | | √100-4x*2=6 | | 6x-(5+7)=34 | | 8-10x=5x+4 | | 13+32=5*7x-9 | | 5.8=8.5-0.9x | | 14+22=-4(8x-9) | | 7x-10+28=7x-10+x+3 | | 14=6+4b | | 13=6+d/4 | | 6(8x-6)+7=-29-x | | (5x-3)+1x=39 |