If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x-0.16x=4200
We move all terms to the left:
x-0.16x-(4200)=0
We add all the numbers together, and all the variables
0.84x-4200=0
We move all terms containing x to the left, all other terms to the right
0.84x=4200
x=4200/0.84
x=5000
| 8+3(r+5)=51 | | 15-4(6n+3)=39 | | 2x=3x=12 | | (3x-2)-(4-5x)=0 | | 5-2(7-x)=7 | | 9y-100=0 | | 12x-5-7x-2=1 | | 6x²-10x+4=0 | | -7+6n-9=-44 | | 7y-2(y-3)=46 | | 5w+3=2w+21-3 | | 12x²+7x-10=0 | | (3x)/4=(1-x)/12 | | 3x/4=1-x/12 | | -2.3=x-4.1 | | 3x-12x=24 | | -9/3k+6/7=-4-2/3k | | 9x-5x+3=2x+10 | | P4-2(p-3)=0 | | 10x-3=-57x-3 | | n+5(n-10)=10 | | 13-5x+3x+4x=18 | | 12-3x=7x+98 | | 12-3x=7x=98 | | 8n−21=43 | | (x+1/2)=-13 | | 2(x+½)=−15 | | 3(2y+4)=-33 | | 1/5(10x-20)=3x-1 | | 15-5x=38 | | 15-6)-6=3x=1.5x | | 5m-4=2m-1 |