You can put this solution on YOUR website! your equation is:
3/5 * x + 4000 + 8000000 = 8069700
subtract 8000000 from both sides of the equation to get:
3/5 * x + 4000 = 69700
subtract 4000 from both sides of the equation to get:
3/5 * x = 65700
multiply both sides of the equation by 5/3 to get:
x = 65700 * 5/3 = 109500
that's your number.
replace x with that in your original equation to get:
3/5 * 109500 + 4000 + 8000000 = 8069700
simplify to get:
8069700 = 8069700
this confirms the value of x is correct.