Question 1059628
Initial quantity in the bank, 2b+3.


After a week:  {{{2(2b+3)}}}

After another week:  {{{2*2(2b+3)}}}.


Knows {{{4(2b+3)=477}}}; solve for b and evaluate {{{2b+3}}}.


Alternatively,  since the question asks for 2b+3 and you have an equation already, you can divide both sides by 4 and compute.


{{{2b+3=477/4}}}