21x+45=17+14x помогите поже

Question

21x+45=17+14x помогите поже

Answer 1

21х+45=17+14х
21х-14х=17-45
7х=-28
х=-28\4
х=-7

Answer 2

21х - 14х = 17 - 45
7 х = -28
х = -4