Question

1.38 ÷ x + 5.7 = 12.6

Answer 1

1.38:х+5.7=12.6

1.38:х=12.6-5.7

1.38:х=6.9

х=1.38:6.9

х=0.2

Answer 2

Благодарю

Answer 3

аха♡