Let's just start with x=20 and then do some algebra to it to make it all complicated
x = 20
2 * x = 2 * 20
2x = 40
2x - 13 = 40 - 13
2x - 13 = 27
Answer:

Step-by-step explanation:


Use <em>FOIL</em> method.


Answer:
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2) 
Step-by-step explanation:
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