Question

7 целых 1/2-5/6
-3+1,6
3*(-2+х)=12
помогите

Answer 1

1) 7 1/2 - 5/6 = 15/2 - 5/6 = 45/6 - 5/6 = 40/6 = 6 4/6 = 6  2/3
2) - 3 + 1,6 = - 1,4
4) - 6 + 3х = 12
     3х = 12 + 6
     3х = 18
       х = 6