(3х+42)(4,8-0,6)=0 помогте

Question

(3х+42)(4,8-0,6)=0 помогте

Answer 1

3х+42=0.
3х=0-42.
3х=-42
х=-42:3
х=-14

Answer 2

3x+42=0
3х=0-42
3х=-42
Х=(-42):3
Х=-14