Let's use the variable 'x' to represent the number of candy bars bought.
If we bought one magazine for $3 and x candy bars for $2 each, we can write the equation for the total cost:
[tex]19=3+x\cdot2[/tex]Now, solving it for x, we have:
[tex]\begin{gathered} 19-3=2x \\ 2x=16 \\ x=\frac{16}{2} \\ x=8 \end{gathered}[/tex]So we bought 8 candy bars.