Let's solve your inequality step-by-step.<span><span><span><span><span>−4</span>3</span>x</span>+<span>16</span></span><<span>7<span>9
</span></span></span>Step 1: Subtract 1/6 from both sides.<span><span><span><span><span><span>−4</span>3</span>x</span>+<span>16</span></span>−<span>16</span></span><<span><span>79</span>−<span>16</span></span></span><span><span><span><span>−4</span>3</span>x</span><<span><span>1118 </span> </span></span>Step 2: Multiply both sides by 3/(-4).<span><span><span>(<span>3<span>−4</span></span>)</span>*<span>(<span><span><span>−4</span>3</span>x</span>)</span></span><<span><span>(<span>3<span>−4</span></span>)</span>*<span>(<span>1118</span>)</span></span></span><span>x><span><span>−11</span><span>24
I entered the equation into a graphing calculator. clicked table and then scrolled down to the profit of $3,563. 55 skateboards you could also try this equation. B=the number attached to x so 10, a=the number attached to x^2(or in other equation x^3 etc) so 1 and c is the number, so -12.
Just square the top and bottom of the fraction. 
and 
so we have 12/16 and then we reduce to 3/4