21,71 + 4,06х = 27,8

Question

21,71 + 4,06х = 27,8

Answer 1

21,71+4,06х=27,8
4,06х=27,8-21,71
4,06х=6,09
х=1,5

Answer 2

4,06х=27,8-21,71
4,06х=6,09
х=6,09:4,06
х=1,5