<span>Subtracting 2x from both sides of the equation would be a reasonable first step in solving this equation as it properly combines like terms to the left side of the equation. It quickly shows that the next step would be adding 1 to both sides of the equation, which would have us arrive at the answer of x = 5.</span>
I think its GI. Could be HJ too. Here's a little reminder about intersecting, parallel, and perpendicular lines...
I think the rate is decreasing from:
(-infinity, ln9/3)