Question 157149
for {{{f(x)=8x-9}}}, find {{{f(-3)}}}
<pre><font size = 4 color = "indigo"><b>
just substitute {{{-3}}} for {{{x}}}

{{{f(x)=8x-9}}}

{{{f(-3)=8(-3)-9}}}

Then simplify the right side, but leave the
left side just as it is:

{{{f(-3)=-24-9}}}

{{{f(-3)=-33}}}.

That's all there is to it!

Edwin</pre>