(1,2x+15)-(21x-36)=8 решите пж

Question

(1,2x+15)-(21x-36)=8 решите пж

Answer 1

1,2х + 15 - 21х + 36 = 8
1,2х - 21х = 8 - 15 - 36
-19,8х = -43
х = -43 : (-19,8) = 2,17