We have the equation:
[tex]rp=rq+r[/tex]We know that r = 40 and p = 2, so we have to calculate the value of q:
First, we replace the known values and then proceed to solve the equation:
[tex]\begin{gathered} rp=rq+r \\ 40\cdot2=40\cdot q+40 \\ \frac{40\cdot2}{40}=\frac{40\cdot q+40}{40} \\ 2=q+1 \\ q=2-1 \\ q=1 \end{gathered}[/tex]The value of the unknown variable q is q = 1
