r=pla
Rewrite the equation as pla=r.
pla=r
Multiply each term by a and simplify.
Multiply each term in pla=r by a.
pla⋅a=r⋅a
Cancel the common factor of a.
Cancel the common factor.
pla⋅a=r⋅a
Rewrite the expression.
pl=r⋅a
pl=ra
pl=ra
Rewrite the equation as ra=pl.
ra=pl
Divide each term by r and simplify.
Divide each term in ra=pl by r.
rar=plr
Cancel the common factor of r.
Cancel the common factor.
rar=plr
Divide a by 1.
a=plr
a=plr
a=plr
a=plr
Solve for a r=(pl)/a