Solve 7x +2x over 3 =5

X= 15/9 — combine like terms to get 9x/3=15. Isolate the variable by multiplying both sides by 3. 9x=15 — divide both sides by 9 to isolate variable.

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's