Please help with # 2 and 3

Show Zoom Macros B32 X v fx A B C D E F G H K M N O P Q R S T U V Set up and solve the following as directed; points as defined. Express solution value as fractions #2 b d up to 3 digits (5 pts) [C] [R] You may type in these rows a+b+c+d =8 a-b+c+d =6 Type in your initial solution where indicated along Column M. a+b-c-d=0 (20 pts) Then change element r21 to a value of 4 >> SAVE! a -d =0 [S] (15 pts) Initial Solution 4 (5 pts) Set up the above T system and