Question 1185960
p, money at first


{{{p-24-(1/4)(p-24)=(3/7)p}}}, literal translation


{{{7*4=28}}}
Multiply both sides by 28, or by  4*7.

{{{28p-28*24-7(p-24)=12p}}}

{{{28p-28*24-7p+7*24=12p}}}

{{{21p-21*24=12p}}}

{{{9p=21*24}}}

{{{p=(21/3)(24/3)}}}

{{{p=7*8}}}

{{{highlight(p=56)}}}
.

.