Question 340293
{{{LM+MN=LN}}}
{{{(1/2)z+2+3z+3/2=5z+2}}}
Multiply both sides by {{{2}}}.
{{{z+4+6z+3=10z+4}}}
{{{3z=3}}}
{{{z=1}}}
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{{{LM= 1/2(1) +2=5/2}}}
{{{MN= 3(1) + 3/2=9/2}}}
{{{LN= 5(1)+2=7}}}