Question 1102065
b Brian
x Sidney
"Brian is THREE TIMES OLDER THAN Sidney,..."
{{{system(b=x+3x=4x,b+x=8)}}}


{{{b=4x}}}
{{{b=4(8-b)}}}
{{{b=32-4b}}}
{{{b+4b=32}}}
{{{5b=32}}}
{{{b=32/5}}}
{{{b=6&2/5}}}  NOT a whole number