Question 1193002
{{{system(u+10t=2(u+t)+26,and,10u+t=u+10t+18)}}}


{{{u+10t=2u+2t+26}}}{{{and}}}{{{9u-9t=18}}}


{{{-u+8t=26,u-t=2}}}


Add:
{{{7t=28}}}

{{{highlight(t=4)}}}


Using simplified equation 1,
{{{-u+8t=26}}}
{{{u-8t=-26}}}
{{{u=8t-26}}}
{{{u=8*4-26}}}
{{{u=32-26}}}
{{{highlight(u=6)}}}


The number is 46.