Quadrilateral sides

What is the perimeter of a quadrilateral whose first side is 3 cm longer than the second side, the third side is 5 cm shorter than the fourth side, and the second side is 2 cm shorter than the fourth side?

Final Answer:

o = cm 4b+2

Step-by-step explanation:

$$\begin{gathered} a=3+b \\ c=d-5 \\ b=d-2 \\ o=a+b+c+d \\ o=(3+b)+b+(d-5)+(b+2) \\ o=(3+b)+b+(b+2-5)+(b+2) \\ o=4b+3+4-5 \\ o=4b+2 \end{gathered}$$

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