1,8-(2,3/5-(х-1,2))=3 решить уравнение 1,9-(5,3/4-(х+1))=3,15

Question

1,8-(2,3/5-(х-1,2))=3 решить уравнение 1,9-(5,3/4-(х+1))=3,15

Answer 1

1,9-(5 3/4 - (×+1)) = 3,15
5 3/4 -(×+1) = 1,9 - 3,15
5 3/4 -(×+1) = -1,25
×+1 = 5 3/4 - (-1,25)
×+1 = 5,75 + 1,25 5 3/4=5,75
×+1 = 7
× = 7 - 1
× = 6