Question 169465
Remember: {{{P[R]=2(L+W)}}} ------> {{{P=2L+2W}}}, EQN 1
Given:---> {{{system(P[R]=6x+6,W=x,L=L)}}}
Subst.
{{{6x+6=2L+2x}}}
{{{(6x-2x+6)/2=L}}}
{{{(4x+6)/2=L}}}
{{{L=(4x/2)+(6/2)=2x+3}}}, Answer
Check via Eqn 1:
{{{6x+6=2(2x+3)+2x}}}
{{{6x+6=4x+6+2x}}}
{{{6x+6=6x+6}}}, good
Thank you,
Jojo