Question 664895
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Hi,
The sides of an equilateral triangle measure 
(x+y+3) cm  
(3y-2) cm and 
(2x+y) cm
ALL sides equal:
 {{{x+y+3= 2x+y}}} ,  x = 3cm
 {{{x+y+3= 3y-2}}}  ||substituting x = 3cm
 3 + y + 3 = 3y - 2
        8 = 2y
        y = 4cm
(x+y+3) cm  {{{s = 3cm + 4cm + 3cm = 10cm}}} , {{{P = 10cm + 10cm + 10cm = 30cm}}}