Question 1152105
{{{system(h=2+5k,h-4=11(k-4))}}}
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{{{(2+5k)-4=11k-44}}}
{{{5k-2=11k-44}}}
{{{44-2=6k}}}
{{{6k=42}}}
{{{highlight_green(k=7)}}}
.
{{{highlight_green(h=37)}}}



How many years, x:
{{{h+x=3(k+x)}}}