9(6x+15)-16(40x+56)=42(6x-15)-39

Question

9(6x+15)-16(40x+56)=42(6x-15)-39

Answer 1

54x-135-640x-896=252x-630-39
54x-640x-252x=-669+135+896
-838x=362
x=-181 дроб 419