(2,93-19а)-2,93+20а При а=3 1/3

Question

(2,93-19а)-2,93+20а При а=3 1/3

Answer 1

(2,93-19x3 1/3)-2,93+20x3 1/3=(2,93-63,27)-2,93+66,6=-60,34-2,93+66,6=3,33