Question

решить пример 9.5 х- ( 3.2х+1.8х) +3.75 =6.9

Answer 1

9,5x-(3.2x+1.8x)+3.75=6.93
3.2х+1.8х=5х
9.5х-5х=4.5х
6.9-3.75=3.15
4.5х=3.15х
х=3.15/4.5х
х=0.7

Answer 2

большое тебе спосибо огромное