Question 337464
{{{16z-9+4z+3=90}}}
{{{20z-6=90}}}
{{{20z=96}}}
{{{z=24/5}}}
.
.
.
{{{16z-9=16(24/5)-9}}}
{{{16z-9=384/5-45/5}}}
{{{16z-9=339/5}}}
.
.
.
{{{4z+3=4(24/5)+3}}}
{{{4z+3=96/5+15/5}}}
{{{4z+3=111/5}}}