please write clearly and write the formula that i can follow step by step

. 2.4 Using the graphical method to solve the following problems: (1) max z = 2x, + x2 (2) max z = 3x, + 5x, 5x, $ 15 x 54 6x, + 2x, S 24 2x, $ 12 s.t. s.t. x+x 5 5 3x, + 2x, 5 18 X2 20 X_20