1.03/1.15=q+(1-q)*0.3

Solution for 1.03/1.15=q+(1-q)*0.3 equation:

1.03/1.15=q+(1-q)*0.3

We simplify the equation to the form, which is simple to understand 
1.03/1.15=q+(1-q)*0.3

Simplifying:
 + 0.895652173913=q+(1-q)*0.3

Reorder the terms in parentheses
 + 0.895652173913=q+( + 0.3-0.3q)

Remove unnecessary parentheses
 + 0.895652173913=+q + 0.3-0.3q

We move all terms containing q to the left and all other terms to the right. 
-1q + 0.3q=0.3-0.895652173913

We simplify left and right side of the equation. 
-0.7q=-0.595652173913

We divide both sides of the equation by -0.7 to get q. 
q=0.850931677019