If it's not what You are looking for type in the equation solver your own equation and let us solve it.
0.85=200x
We move all terms to the left:
0.85-(200x)=0
We move all terms containing x to the left, all other terms to the right
-200x=-0.85
x=-0.85/-200
x=0.85/200
| −2(t+5)=45−7t | | 2.9=s+19.37 | | F/3a2=2 | | 3x-8+x=2x-4 | | 42=1/2h(10+4) | | 1.5x-4=96 | | 3x2=17 | | 8x-19=46x | | 4x2=17 | | 4·1.4=a | | 5y2+11y=-2 | | 6+4p=–2+4p | | 8+5x=−2 | | m-8(6+8m)=6(1-6m) | | 21x+48=96 | | -x2-2x+7=0 | | z+1/12=-4/9 | | 0.9÷9=b | | ½x+8=14 | | 6x+1=-26 | | x+1+2x+1=x+2+x+x | | 8x−19=46x | | 3n-1=13 | | -8(x-6)-7=-7-4(4x-6) | | 6t+4-7t=14 | | 6+x^2=12x | | 5^(x+2)=18 | | 18=b+5(5)(5)(5) | | x/4+11=2 | | (X-2)+6(2x+11)=96 | | -x2+4x-1=0 | | 11x+8=13x-6=90 |