The entire line is a total of 23. Above the line it creates three segments which break up the 23 in different parts. Therefore, in other words, (x - 6) + (9) + (2x - 19) = 23. So I added all my liked terms together and simplified to get me the value of 13.
Second Scenario:
Just like in the first scenario, the second scenario provides the information that the entire line is 32. However in this case the line is split up in two different sections as indicated above the line. In which provides you with the information with the two line segments being ? (or x in this case) and 20. Therefore you would set it up the same way as in the first scenario because these two parts added together gives us the entire length of the line. So I said x + 20 = 32, which in return gave me the value to be 12.
1) factor the denominators: 2b/(b-1)2 - 2/ (b-1)2 2) MAKE SURE YOU HAVE A COMMON DENOMINATOR 3) combine the numerators: 2b-2/(b-1)2 4) distribute 2 from numerator: 2(b-1)/(b-1)2 5) simplify; answer is 2/(b-1)
