If it's not what You are looking for type in the equation solver your own equation and let us solve it.
421.58=210x+0.71
We move all terms to the left:
421.58-(210x+0.71)=0
We get rid of parentheses
-210x-0.71+421.58=0
We add all the numbers together, and all the variables
-210x+420.87=0
We move all terms containing x to the left, all other terms to the right
-210x=-420.87
x=-420.87/-210
x=2+0.87/210
| 6x+38=4(x+9) | | z+2=830 | | -11r=-847 | | 16-2=3/2t+9 | | 360-9m=180 | | 10x-23=5x-3 | | 7(4a-3)=-(6a-5)+8 | | 10.8x-2.3x=153 | | 360-9m=234 | | 3x+34=13+29 | | 4x°=(3x+13)° | | (7x−8)+(3x+8)=180 | | y=25-12=247 | | 3x+4=30/3 | | 4x+35-10x=45.50 | | 108-4c=76 | | q—105=124 | | -48=15y+8-y | | |7h–5|–5=6 | | q—-105=124 | | 45+11c=100 | | h+-170=757 | | h+55=614 | | -30=j/30 | | -(1/4w+8)+8=13 | | 50=15+7m | | 11j=374 | | g/6=-31 | | 2m-32=-6 | | 6×+7=8x-3 | | 5/3=4/y | | 1,2(4x-8)=2+7 |